Question
Evaluate the following:
$\int x^2 \cos ^{-1} x d x$
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Answer
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Similar questions
In $\triangle A B C$, prove that
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→$\frac{\cos ^2 A -\cos ^2 B }{ a + b }+\frac{\cos ^2 B -\cos ^2 C }{ b + c }+\frac{\cos ^2 C -\cos ^2 A }{ c + a }=0$
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(b) Also find its value at $x=0.5$ and 9 .
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