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in Trigonometry by (94.7k points)
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If `f(x)=sin^(-1)(cosec(sin^(-1)x))+cos^(-1)(sec(cos^(-1)x))`, then f(x) takes
A. exactly two values
B. one value
C. undefined
D. infinite values

1 Answer

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by (97.5k points)
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Best answer
Correct Answer - B
Clearly f(x) is defined only for `x = pm 1`
and `f(1)=f(-1)=(pi)/(2)`

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