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

774,873 users

find the exact value of each expression.

0 votes

find the exact value of each expression.

asked Jan 21, 2015 in TRIGONOMETRY by anonymous

1 Answer

0 votes

Step 1:

(a)

The expression is .

Using sum and difference formulas

.

image

Step 2:

(b)

The expression is image.

image

image.

Solution:

(a) image.

(b) image.

answered Jan 21, 2015 by Sammi Mentor

Related questions

asked Feb 10, 2015 in TRIGONOMETRY by anonymous
...