SOLUTION: I need to simplify this formula: (sin(a+b)+sin(a-b))/(cos(a+b)+cos(a-b))
I'm stuck and I really want to know the solution step by step. Thank you, Bert
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-> SOLUTION: I need to simplify this formula: (sin(a+b)+sin(a-b))/(cos(a+b)+cos(a-b))
I'm stuck and I really want to know the solution step by step. Thank you, Bert
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Question 1033404: I need to simplify this formula: (sin(a+b)+sin(a-b))/(cos(a+b)+cos(a-b))
I'm stuck and I really want to know the solution step by step. Thank you, Bert Answer by Edwin McCravy(20065) (Show Source):
