if cosa=-48/73 then what is sina=?
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here is your answer
Step-by-step explanation:
Cosa = -48/73
we know,
Sin²a + Cos²a = 1
or, Sin²a + (-48/73)² = 1
or, Sin²a + 2304/5329 = 1
or, Sin²a = 1 - 2304/5329
or, Sin²a = 3025/5329
or, Sin²a = (55/73)²
or, Sina = 55/73
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