$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?

$\sin (90-3\theta ) = \frac{1}{\sqrt{2}}$ হলে θ = কত?