If `cot^3 alpha+ cot^2 alpha + cot alpha=1` then which of the following is/are correct

If cot^3alpha +cot ^2 alpha + cot alpha =1 then

If tan alpha+cot alpha=2 then

Sum of three positive numbers alpha,beta and gamma is (pi)/(2). if cot alpha+cot gamma=2cot beta, then which of the following hold(s) good(A)cot alpha*cot gamma=3 (B) cot alpha*cot gamma=2(C)sum cot alpha=prod cot alpha (D) sum tan alpha=prod tan alpha

Find cot^2 theta - cot^2 alpha . .

Prove that cot alpha - tan alpha =2 cot 2 alpha.

cot alpha+cot(60+alpha)-cot(60-alpha)=3cot3 alpha

If alpha + beta = 90^@ and cot alpha = 4/3 then cot beta =

Show that 1 + cot^2 alpha / (1+ cosec alpha) = cosec alpha

(1+cot alpha+cos ec alpha)/(1-cot alpha+cos ec alpha)

If tan alpha + cot alpha =2 , then tan^(20)alpha + cot^(20)alpha=