Question

Find an angle in the normal range(0 degrees to 360 degrees, or 0 to 2pi radians) whose terminal side points in the same direction in the terminal side of an angle measuring 25pi/8

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Answer 1

d) 9pi/8

Explanation:

25pi/8 - 2pi

(25-16)pi/8

9pi/8

Answer 2

A full circle is 2 PI

Subtract the given angle from the full circle:

25pi/8 - 2pi

rewrite 2pi to have a common denominator:

25pi/8 - 2pi8/8

Multiply 2 by 8:

25pi/8 -16pi/8

Subtract 16 from 25:

9pi/8

The answer is D. 9pi/8