If tan A =3/4 show that sin A cos A = 12/25

1.	If tan A =3/4 show that sin A cos A = 12/25
Answer» tan A = 3/4 ==> sin A/cos A = 3/4. Hypotenuse = √(3)^2 + (4)^2 = √9 + 16 = √25 = 5 units. Therefore, sin A * cos A = 3/5 * 4/5 = 12/25// Hence proved.

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