Give the exact value of the expression without using a calculator.

sine left parenthesis 2 tangent Superscript negative 1 Baseline eight fifteenths right parenthesis

.

Step-by-step explanation:

To find the exact value of the expression

First, we need to simplify the expression .

Draw a triangle in the plane with vertices , , and the origin. Then is the angle between the positive x-axis and the ray beginning at the origin and passing through .

Therefore,

Now, use the identity

answer: procent 54 wynosi 33,33%

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5