Question

Given: 4 cot A = 3, find; (i) sin A (ii) sec A (iii) cosec2 A – cot2A.​

Answer 1

Answer:

(ii) sec A

Step-by-step explanation:

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Answer 2

Answer:

(i) Sin A = 4/5

(ii) Sec A = 5/3

(iii) Cosec²A - Cot²A = 1 (identity)

Step-by-step explanation:

4 Cot A = 3

Cot A = 3/4 ( we know cot A = base / perpendicular)

hypothenas = √ perpendicular²+ base²

h = √ 4²+3²

h = √ 25

h = 5

(I) Sin A = P/H = 4/5

(ii) Sec A = H/B = 5/3