4. Solve the following (3) *
3 tan 0 + cot 0 = 5 cosec
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I hope u understand the solution....
3 tan theta + cot theta = 5 cosec theta
3 tan theta + (1/tan theta) = 5 cosec theta
Multiply both sides by tan theta:
3 tan^2 theta + 1 = 5 cosec theta * tan theta
3 tan^2 theta + 1 = 5 (1/sin theta) * (sin theta/cos theta)
3 (sec^2 theta - 1) + 1 = 5 (1/cos theta)
3 (sec^2 theta - 1) + 1 = 5 sec theta
3 sec^2 theta - 5 sec theta - 2 = 0
sec theta - 2 = 0
sec theta = 0 + 2
sec theta = 2
so, theta = 60°
I hope u had understood
I had done step by step explanation....
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