If cos A= 4/7 what is sin A?
Sol- cosA = 4/7
So cosA= b/h
And h^2= p^2+ b^2
h = (p^2+b^2)1/2
SO p= √33, b=4 ,h=7
SinA = √33/7 ans
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ravikumarwrs196:
Yes correct answer
thks
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