$\cos (\tan^{-1} x)$ નું મૂલ્ય . . . . . . બરાબર છે : (જ્યાં $|x| < 1$)

  • A
    $\frac{1}{\sqrt{1+x^2}}$
  • B
    $\frac{1}{\sqrt{1-x^2}}$
  • C
    $\frac{x}{\sqrt{1-x^2}}$
  • D
    $\frac{x}{\sqrt{1+x^2}}$

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Similar Questions

અંતરાલ $\left[-\frac{\pi}{4}, \frac{3 \pi}{4}\right]$ માં $\sec ^{-1}\left(\frac{1}{4} \sum_{k=0}^{10} \sec \left(\frac{7 \pi}{12}+\frac{k \pi}{2}\right) \sec \left(\frac{7 \pi}{12}+\frac{(k+1) \pi}{2}\right)\right)$ નું મૂલ્ય કેટલું થાય?

જો $\operatorname{Tanh}^{-1} x = \operatorname{Coth}^{-1} y = \log \sqrt{5}$ હોય,તો $\operatorname{Tan}^{-1}(xy) = $

$\cos ^{-1}\left(\cos \frac{8 \pi}{3}\right)$ નું મૂલ્ય શોધો.

જો $y = \sin^{-1}\left(\frac{2^{x+1}}{1+4^x}\right)$ અને $\frac{dy}{dx} = \frac{2^{x+1} \log 2}{f(x)}$ હોય,તો $f(0) = $ . . . . . .

$1 + \cot^2(\sin^{-1}x) = $

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