Evaluate cos (2 cos –1 x + sin –1 x) at x = , where 0 ≤ co…

Maths Inverse Trigonometric Functions Mix Subjective Type

Published on: August 13, 2026

Evaluate cos (2 cos –1 x + sin –1 x) at x = , where 0 ≤ cos –1 x ≤ π and – ≤ sin –1 x ≤ .

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cos = – sin (cos –1 x) = –

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