3cos theta=4 find 5sintheta-3costheta/5sin theta +3costheta
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Answer:
Step-by-step explanation:
3 cosФ = 4
(5 sinФ - 3 cosФ)/(5 sinФ + 3 cos Ф)
= (5 sinФ - 4)/(5 sinФ + 4)
= (5 sinФ - 4)²/(5 sin Ф + 4) (5 sin Ф - 4)
= (25 sin²Ф + 16 - 40 sinФ)/(25 sin²Ф - 16)
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