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OpenStudy (anonymous):
if sin (x)=3/5 and cos (x) is positive, what is cos(x)
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OpenStudy (here_to_help15):
Welcome to OS :D
OpenStudy (here_to_help15):
@sammixboo will assist you because i have to go atm
OpenStudy (anonymous):
hit, cos^2(x) + sin^2(x) = 1
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