1.

sin-1 (cos x) = (π/2) – x is valid for …(a) -π ≤ x ≤ 0 (b) 0 ≤ x ≤ π(c) -π/2 ≤ x ≤ π/2(d) -π/4 ≤ x ≤ 3π/4

Answer»

(b) 0 ≤ x ≤ π



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