Cheyenne B.

asked • 05/23/16

Find the value for Cos(theta) if the following conditions hold: Cos(2theta)=1/sqrt2 and 180 degrees < 0 < 270 degrees

This is a trigonometric Identity related question.

2 Answers By Expert Tutors

By:

David S. answered • 05/24/16

Tutor
5 (49)

experienced and patient Math and Physics tutor

Michael J. answered • 05/23/16

Tutor
5 (5)

Understanding all Sines of Triangles

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