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The equation sin^-1x = 3sin^-1a has a solution for

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The equation sin-1x = 3sin-1a has a solution for

(a)  -1 ≤ a ≤ 1

(b) - √3/2 ≤  a ≤ √3/2

(c)  -1/√2 ≤ a ≤ 1/√2

(d) -1/2 ≤ a ≤ 1/2

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Best answer

Correct option  (d) -1/2 ≤ a ≤ 1/2

Explanation:

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