Mathematics

Mathematics

Problem

Which trigonometric ratio is equal to sin⁡(90∘−θ)\sin(90^\circ-\theta) for any acute angle θ\theta? a) cot⁡θ\cot\theta b) tan⁡θ\tan\theta c) cos⁡θ\cos\theta d) csc⁡θ\csc\theta

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