Higher Secondary Question Paper Solution of Year 2014 Question No: B.(2)(c)(i)
\(y = x + {x^3 \over 3} + {x^5 \over 5} + .... \alpha\) হলে, দেখাও যে \({dy \over dx } = {1 \over 1 - x^2}\)

\(y = x + {x^3 \over 3} + {x^5 \over 5} + .... \alpha\) হলে, দেখাও যে \({dy \over dx } = {1 \over 1 - x^2}\)