100%
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?
tan^-1 (1/7) + tan^-1 (1/8) + tan^-1 (1/18) = কত ?