What is equivalent to the value of sin(A+B) if sinA= cosB?

I know the answer is 1. I just can't see how to get their using the trig identities.

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- Aug 8th 2010, 12:06 PMMATNTRNGTrigonometric Identities
What is equivalent to the value of sin(

*A*+*B*) if sin*A*= cos*B*?

I know the answer is 1. I just can't see how to get their using the trig identities. - Aug 8th 2010, 12:14 PMArchie Meade