For an acute angle ,

MATHEMATICS · Multi-part · AP · AP Precalculus · Trigonometric and Polar Functions · Trigonometric and Polar Functions

Problem

For an acute angle θ\theta, sec⁡θ=54\sec\theta = \dfrac{5}{4}. Determine the following values: (i) cos⁡θ\cos\theta (ii) sin⁡θ\sin\theta

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