In any triangle `ABC, acotA+bcotB + c cot C` is equal to

In a triangle ABC,if a cot A+b cot B+c cot C=

In DeltaABC,acotA+bcotB+c cotC=

If in a triangle ABC ,b +c=4a then cot(B/2)cot(C/2) is equal to

If in a triangle ABC ,b +c=4a then cot(B/2)cot(C/2) is equal to

If ina triangle ABC, b+c=3a, then cot(B/2)cot (C/2) is equal to

In an acute angled triangle ABC, cot A cot B + cot C + cot c Cot A = …..

In triangle ABC , if cot A , cot B , cot C are in A.P., then a^(2), b^(2) , c^(2) are in …………

If circum-radius and in-radius of a triangle ABC be 10 and 3 units respectively , then a cot A +b cot B +c cot C is equal to

In any triangle ABC,sum a sin(B-C) in equal to ab+bc+ca b.0 c.3abc d.3(a+b+c)

If circum-radius and in-radius of a triangle ABC be 10 and 3 units respectively , then a cot A + cot B + cot C is equal to