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Question
Find the domain of `g(x) = sin^-1x + cos^-1x`
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Solution
`g(x) = sin^-1x + cos^-1x`
Range of sin x and cos x is [–1, 1]
– 1 ≤ x ≤ 1
∴ x ∈ [–1, 1]
The domain of g(x) = [–1, 1]
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