સમીકરણ $\sin^{-1}x - \cos^{-1}x = \cos^{-1}\left(\frac{\sqrt{3}}{2}\right)$ માટે

જો $\tan ^{-1} 2x + \tan ^{-1} 3x = \frac{\pi}{4}$ હોય,તો $x = $

જો $\operatorname{Tan}^{-1}\left[\frac{1}{1+1(2)}\right]+\operatorname{Tan}^{-1}\left[\frac{1}{1+(2)(3)}\right]+\operatorname{Tan}^{-1}\left[\frac{1}{1+(3)(4)}\right]+\cdots+\operatorname{Tan}^{-1}\left[\frac{1}{1+n(n+1)}\right]=\operatorname{Tan}^{-1} \theta$ હોય,તો $\theta=$

જો $0 < x < 1$ હોય,તો $y = \cos^{-1}\left(\frac{1-x^2}{1+x^2}\right)$ માટે $\frac{dy}{dx}$ શોધો.

જો $\sum_{n=1}^{2026} \tan^{-1}(\frac{1}{n^2+n+1}) = \tan^{-1}(1 - \frac{1}{x})$, જ્યાં $x \neq 0$, તો $x = $

$\tan \left(\sin ^{-1} \frac{3}{5}+\cot ^{-1} \frac{3}{2}\right)$ ની કિંમત શોધો.