I have a trig proof i have come at from every way i can think of and just can't make it work

If a/sin A = b/cos A, show that sin A cos A = (ab)/(a^2 + b^2)

thanks

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- August 28th 2010, 02:43 PMjacsTrig Proof
I have a trig proof i have come at from every way i can think of and just can't make it work

If a/sin A = b/cos A, show that sin A cos A = (ab)/(a^2 + b^2)

thanks - August 28th 2010, 03:18 PMArchie Meade
- August 28th 2010, 03:38 PMjacs
Thanks, figured it out now. Never would have thought to do it that way on my own!