" Prove that "(cot A+tan B)/(cot B+tan A)=cot A cot B

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(cot A+tan B)/(cot B+tan A)=cot A tan B

Prove that : (cot A + tan B)/ (cot B + tan A) = cot A tan B

Prove: (cot A+tan B)/(cot B+tan A)=cot A tan B

Show that : (cot A+tan B)/(cot B+tan A)=cot A tan B

Show that (cot A + tan B) / (cot B + tan A) = cot A. tan B.

If A + B + C =pi/2 , prove that : cot A + cot B + cot C = cot A cot B cot C .

If A+B+C= 90^@ , Prove that cot A+cot B+cot C=cot A cot B cot C

If A + B + C =180^@ , prove that : cot B cot C + cot C cot A + cot A cot B = 1 .

If "cosec" 2A+ "cosec"2B+"cosec"2C=0 , prove that tan A+ tan B+ tan C+ cot A+ cot B+cot C=0

Prove that cot (A + B) = (cot A cot B - 1)/(cot A + cot B)