Class 10 Maths · Introduction to Trigonometry · NCERT Exercise 8.3 · Question 2

Introduction to Trigonometry Medium

Write all the other trigonometric ratios of

∠ A

in terms of

sec A

Answer

cos A = \frac{1}{sec A}

sin A = \frac{sec ^{2} A - 1}{sec A}

tan A = sec^{2} A - 1

csc A = \frac{sec A}{sec ^{2} A - 1}

cot A = \frac{1}{sec ^{2} A - 1}

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