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Prove that cos^(-1)(frac[b+acosx][a+bcos...

Prove that `cos^(-1)(frac[b+acosx][a+bcosx])=2tan^(-1)(sqrt(frac[a-b][a+b])tanfrac[x][2])`

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USHA PUBLICATION-MODEL QUESTION SET-MODEL QUESTION SET
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  2. If the mapping f and g are given by f= {(1,2), (3, 4), (5, 6), (7, 8)}...

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  3. Prove that cos^(-1)(frac[b+acosx][a+bcosx])=2tan^(-1)(sqrt(frac[a-b][a...

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  9. If A is a singular matrix, then what is A(adjA)?

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