If sin A =3/4, calculate cos A and tan A.

1.	If sin A =3/4, calculate cos A and tan A.
Answer» 3/root 5?????? =3/√5 We haveSinA= 3/4Then p/h =3/4Let p=3k and h=4kThen,by Pythagoras\' theoremb=root5Hence, cosA=root5/4 tanA =3/root5. cos a =5/4 and tan a=3/5

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