Add New Description

Fill up the form and submit

যদি $y = \tan^{- 1} \frac{a + b x}{b - a x}$ হয়, তাহলে $\frac{d y}{d x}$ = কত?

\frac{1}{a + b}

\frac{1}{1 - x^{2}}

\frac{1}{1 + x^{2}}

ANS : 4

Descrption

To add a description please, login first. click here to login

Cancel Login