Question

If tan A = 3/4, then find the value of sin A.

A 3/5 Correct Answer Incorrect Answer
B 4/5 Correct Answer Incorrect Answer
C 2/5 Correct Answer Incorrect Answer
D 1 Correct Answer Incorrect Answer

Solution

 tanA = 3/4 tanA = Perpendicular/Base = 3/4 Now, SinA = Perpendicular/Hypotenuse... equation 1 Thus, Hypotenuse = √(4)2 + (3)2 √16 +9 = √25 =5 Hypotenuse = 5 From Equation 1) we get SinA = p/h = 3/5

Practice Next
×
×