If `A+B+C= pi//2` then show that `cot A + cot B+ cot C=cot A cot B cot C`

a cot A+b cot B+c cot C=

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

If A + B + C = pi , show that cot A cot B + cot B cot C + cot C cot A = 1

If A + B + C = pi then show that cot theta = cot A + cot B + cot C ⇔ sin(A - theta) * sin(B - theta)* sin(C - theta) = sin3theta .

If A +B +C = 90 ^@ then ( cot A+ cot B + cot C) /(cot A cot B cot C ) =

If A+B+C =pi , show that cot A + cot B+cot C-cosec A *cosec B* cosec 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

cot B cot C+cot C cot A+cot A cot B=1

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

If A+B+C=180^(@), then cot A+cot B+cot Ccot A cot B cot C