Question

Find the value of cos θ for the angle shown. A line is drawn from the origin through the point four comma negative square root of thirty-three. The angle theta is given as the measurement from the positive x axis counterclockwise to the line. 

cos θ = seven-fourths

cos θ = square root of thirty-three divided by four
cos θ = four-sevenths
cos θ = square root of thirty-three divided by seven

Answer 1

Explanation:

cos 0= 4/7

reason: i took the test

Answer 2

Cos θ = 4/7

Explanation

The angle θ is in the 3rd quadrant. So, it is positive.

cos θ = adjacent / hypotenuse

hypotenuse = √(4² + (√33)²)

= √(16 + 33)

= √47

= 7

Cos θ = 4/7