Math, asked by belismakatwal, 5 months ago

the formula for cot B?

Answers

Answered by Anonymous

cot (A - B) = {cot A. cot B + 1}/{cot B - cot A}.

What is cot a cot B?

cotAcotB−1cotA+cotB=cosAsinAcosBsinB−1cosAsinA+cosBsinB. Now, all the following computations are natural, and pretty authomatic: =cosAcosBsinAsinB−sinAsinBsinAsinBcosAsinB+sinAcosBsinAsinB=cosAcosB−sinAsinBcosAsinB+sinAcosB=cos(A+B)sin(A+B)

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