Question

if tan alpha(cot beta + cot gamma), tan beta (cot alpha + cot gamma ), tan gamma (cot alpha + cot beta) are in AP then
(a) tan alpha, tan beta, tan gamma are in AP
(b)tan alpha, tan beta, tan gamma are in GP
(c)tan alpha, tan beta, tan gamma are in HP
(d) none of these

Answer 1

Tan alpha , tan beta , tan gamma are in ho