SOLUTION: hello..can someone help me ? I am establishing this trig identity Cosa^3+sinb^3/cosb+sinb= 2-sin2b/2 and I get to 1-cosbsinb. How can 1-cosbsinb = 2-sin2b/2 I am challenged by

Question 927644: hello..can someone help me ? I am establishing this trig identity
Cosa^3+sinb^3/cosb+sinb= 2-sin2b/2 and I get to 1-cosbsinb. How can 1-cosbsinb = 2-sin2b/2 I am challenged by this because I do not see an identity that relates. Thank you in advance !!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Hint:

hopefully that is enough to help you finish the problem off. If not, then please let me know.

Also, I'm assuming the original equation should be (notice how I have and NOT )

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