Which of the following is equivalent to cos x? a) tan y b) tan x c) cos y d) sin y

ANSWER

D) sin Y

EXPLANATION

The given triangle is a right triangle.

This implies that that:

Then we have

Recall that

But

When we do the substitution, we get,

Therefore cos(x) is a equivalent to sin(y).

The correct answer is D.

step-by-stp

the correct answer is the section c

x = 17

step-by-step explanation:

in the given figure, two triangles are inscribed in a circle where ∠bae ≅ ∠dae which makes the side be and de equal so we can write it as:

3x - 24 = x + 10

solving this equation for x to get:

3x - x = 10 + 24

2x = 34

x = 34/2

x = 17

therefore, the value of x = 17.