Welcome :: Homework Help and Answers :: Mathskey.com
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,435 questions

17,804 answers

1,438 comments

777,442 users

Evaluate the expression under the given conditions.

0 votes

cos(2θ); sin(θ) =

-5
13

θ in Quadrant III

asked Mar 17, 2017 in TRIGONOMETRY by anonymous

1 Answer

0 votes

The trigonometric identity is image

Consider the right angle triangle, then image

Find image

image

image

answered Mar 17, 2017 by Anney Mentor

Related questions

...