" (iv) "tan(n pi+alpha)=tan alpha

If n is an integer,prove that tan(n pi+alpha)=tan alpha

" If "alpha=(2 pi)/(7)" ,and "tan alpha tan2 alpha+tan2 alpha tan4 alpha+tan4 alpha tan alpha=K" .Then "3k^(2)+4k+5=" ."

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 in (0, pi//16) , then alpha is equal to:

If alpha=(pi)/(14), then the value of (tan alpha tan2 alpha+tan2 alpha tan4 alpha+tan4 alpha tan alpha) is 1(b)1/2(c)2(d)1/3

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