Mathematics, 25.02.2021 03:30, tinktkinkdavis7340

WILL MARK BRAINLIEST! PLZ I REALLY NEED HELP find the exact value of sine of a , given that cosine of a=2/7 and a is in quadrant 4

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WILL MARK BRAINLIEST! PLZ I REALLY NEED HELP find the exact value of sine of a , given that cosine...