$\tan ^{-1} 2 + \tan ^{-1} 3$ નું મૂલ્ય શું છે?

  • A
    $\left(\frac{3 \pi}{4}\right)^c$
  • B
    $\left(\frac{\pi}{2}\right)^c$
  • C
    $\left(\frac{\pi}{4}\right)^c$
  • D
    $\left(\frac{\pi}{6}\right)^c$

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જો $(\sin ^{-1} x)^{2}-(\cos ^{-1} x)^{2}=a ; 0 < x < 1, a \neq 0$ હોય,તો $2 x^{2}-1$ ની કિંમત શું થાય?

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

મુખ્ય કિંમતોના સંદર્ભમાં,જો $\sin ^{-1} x + \sin ^{-1} y + \sin ^{-1} z = \frac{3 \pi}{2}$ હોય,તો $x^{100} + y^{100} + z^{100} =$

$n \in N$ માટે,જો $\cot ^{-1} 3+\cot ^{-1} 4+\cot ^{-1} 5+\cot ^{-1} n=\frac{\pi}{4}$ હોય,તો $n$ ની કિંમત ......... છે.

$2 \tan ^{-1}\left(\frac{1}{3}\right)-\tan ^{-1}\left(\frac{3}{4}\right)=$

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