AP EAMCET · Maths · Differentiation
If \(a>b>0\) and \(x\) is acute, then \(\frac{d}{d x}\left[\cos ^{-1}\left(\frac{b-a \cos x}{a-b \cos x}\right)\right]=\)
- A \(\frac{a^2-b^2}{b \cos x-a}\)
- B \(\frac{a^2-b^2}{a-b \cos x}\)
- C \(\frac{\sqrt{a^2-b^2}}{a-b \cos x}\)
- D \(\frac{\sqrt{a^2-b^2}}{b \cos x-a}\)
Answer & Solution
Correct Answer
(D) \(\frac{\sqrt{a^2-b^2}}{b \cos x-a}\)
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