what is the formula for Tan (A)Tan (B) ? what is the formula for Tan (A)Tan (B) and Cot (A)  Cot(B) 
Re: what is the formula for Tan (A)Tan (B) ? Hello, silvercats! Quote:
Are these what you're looking for? 
Re: what is the formula for Tan (A)Tan (B) ? Quote:

tan A  tan B = (1 + tan A tan B)tan(A  B) 
Re: what is the formula for Tan (A)Tan (B) ? That is what I as looking for.Thanks for both of you :) 
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