Math, asked by sndip, 1 year ago

cot (A÷2)×cot(B÷2)×cot(C÷2)=?

Answers

Answered by qOooooooooOq

cos(A2)sin(A2)+cos(B2)sin(B2)+cos(C2)sin(C2)=cos(A2)sin(A2)×cos(B2)sin(B2)×cos(C2)sin(C2)cos⁡(A2)sin⁡(A2)+cos⁡(B2)sin⁡(B2)+cos⁡(C2)sin⁡(C2)=cos⁡(A2)sin⁡(A2)×cos⁡(B2)sin⁡(B2)×cos⁡(C2)sin⁡(C2)

A+B+C=180

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