Question

3 cos A = 4 sin A
find
a) cos A
b) 3-cot2 A+ cosec2A

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Answer 1

hope it will help you☺

Explanation:

hope

Answer 2

a). cosA = 4/5

b).

`3 - cot {}^(2) a \: + cosec {}^(2) a \: = 0`