Time remaining:
verify the indenty, use pythagorean identity to simplify

Mathematics
Tutor: None Selected Time limit: 0 Hours

Mar 11th, 2015

#4.   4 cos^2 theta - 4 sin^2 theta = 4 cos^2 theta - 4 (1 - cos^2 theta) = 

4 cos^2 theta - 4 + 4 cos^2 theta = 8 cos^2 theta - 4        Put cos^2 theta in the box.



Mar 11th, 2015

thank you for help!! bless you.

Mar 11th, 2015

thank you for help!! bless you.

Mar 11th, 2015

thank you for help!! bless you.

Mar 11th, 2015

Your are very welcome. Thank you for your review.

Mar 17th, 2015

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