Question

If 3 cos A = 4 sin A , find the value of i) cos A ii) 3 − cot2A + cosec2A

Answer 1

Answer:

I) 4/5 2) 4

Step-by-step explanation:

3cosA/4=sinA

3/4 = sinA/cosA = tanA

3/4= opp/adj

then, hyp is 5

i) cosA = adj / hyp = 4/5

ii) 3 - cot^2 A + cosec^ A

3-(-1)= 4

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Answer 2

second answer is 3 not 4