Question

In a right triangle, sin(40 - 2) = cos(32)'. What is the value of x?

O 10
O 15
O 20
O 25

Answer 1

x = 25

Explanation:

Correct question

In a right triangle Sin (40-x)=cos(3x) what is the value of x

Since Sin theta = Cos(90-theta)

Sin (40-x) = Sin(90-3x)

40 - x = 90 - 3x

-x+3x = 90 - 40

2x = 50

x = 25

Hence the value of x is 25