If $a>b>0$ and $x$ is acute, then $\frac{d}{d x}\left[\cos ^{-1}\left(\frac{b-a \cos x}{a-b \cos…

If $a>b>0$ and $x$ is acute, then $\frac{d}{d x}\left[\cos ^{-1}\left(\frac{b-a \cos x}{a-b \cos x}\right)\right]=$
  1. $\frac{a^2-b^2}{b \cos x-a}$
  2. $\frac{a^2-b^2}{a-b \cos x}$
  3. $\frac{\sqrt{a^2-b^2}}{a-b \cos x}$
  4. $\frac{\sqrt{a^2-b^2}}{b \cos x-a}$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2018 (24 Apr Shift 2)

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