In a right triangle, Sin (4x + 10) º = Cos (6x) º. What is the value of x?

Question

asked Jun 7, 2022 3.9k views

1 Answer

Fraggley · Answer 1 · 2022-06-14T04:23:54+0000

Answer:

x = 8

Explanation:

According to trigonometry identity

sin x = Cos (90-x)

Hence if we have;

Sin (4x + 10) º = Cos (6x)

Sin (4x + 10) º = Sin(90- 6x)

4x + 10 = 90 - 6x

4x+6x = 90 - 10

10x = 80

x = 80/10

x = 8

Hence the value of x is 8