আপনার প্রতিষ্ঠানের লোগো সহ ডাউনলোড করতে প্রথমে লগইন করুন!
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যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)
যদি \(F(x) = |\begin{matrix}f(x)&\phi(x)\\ g(x)&\phi(x)\end{matrix}|\) হয়, তবে প্রমাণ কর যে, \(F(x+h)-F(x)=|\begin{matrix}f(x+h)-f(x)&\phi(x+h)\\ g(x+h)-g(x)&\phi(x+h)\end{matrix}|+|\begin{matrix}f(x)&\phi(x+h)-\phi(x)\\ g(x)&\phi(x+h)-\phi(x)\end{matrix}|\)