Given sin 60 degrees = square root of 3 divided by 2 , find cos 60 degrees.

cos60° =

Step-by-step explanation:

Using the trigonometric identity

sin²x + cos²x = 1 ⇒ cos x =

Given

sin60° = , then

cos60° = = = =

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,