SOLUTION: prove the trig identity [cos(alfa-beta)]/(sinalfa cosbeta)=cotalfa+tanbeta

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Question 782034: prove the trig identity
[cos(alfa-beta)]/(sinalfa cosbeta)=cotalfa+tanbeta
Answer by fcabanski(1391) About Me  (Show Source):
You can put this solution on YOUR website!
I'm using A for alpha and B for beta.


cos (a-b) = cos(a)cos(b)+sin(a)sin(b)


tan = sin/cos and cot=cos/sin