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If f(x) = sinx + cosx, g(x) = x^2 - 1, then g{f(x)} is invertible in the domain,

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If f(x) = sinx + cosx, g(x) = x2 - 1, then g{f(x)} is invertible in the domain,

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1 Answer

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Best answer

The correct option (b) [- π/4, π/4]

Explanation:

By definition of composition of function,

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