tan(n pi+alpha)=tan alpha

The value of tan alpha+2tan(2 alpha)+4tan(4 alpha)+...+2^(n-1)tan(2^(n-1)alpha)+2^(n)cot(2^(n)alpha) is

If 4 n alpha = pi , then the numerical value of tan alpha tan 2 alpha tan 3 alpha….tan (2n - 1) alpha is equal to

If 2n alpha= pi/2, then show that tan alpha tan 2 alpha tan 3 alpha.... Tan (2n-2) alpha tan (2n-1) alpha=1

If alpha = (2pi )/(7) , then tan alpha tan 2 alpha + tan 2 alpha tan 4 alpha + tan 4 alpha tan alpha =

Assertion (A) : tan (alpha - beta) + tan (beta - lambda) + tan (lambda - alpha) = tan (alpha - beta) tan (beta - lambda) tan (lambda - alpha) Reason (R ) : In Delta ABC sum tan A = pi tan A

If (1+tan alpha)(1+tan 4alpha)=2, alpha epsilon(0,(pi)/(6)) , then alpha= .