If `cot A ="tan"(n-1)A`,show that one value of A is `(pi)/(2n)`

If cot A tan((n-1)A), where n in N, then a value of A can be

If tan x=3cot x, then the general value of x is a.n pi+(pi)/(6),n in I b.n pi+(pi)/(3),n in I c.n pi+-(pi)/(6),n in I d.n pi+-(pi)/(3),n in I

If tan^(-1)4+cot^(-1)x=(pi)/(2), then value of x is

If A+B=(3 pi)/(4) and n=(1+cot A)(1+cot B) then the value of sin((n pi)/(n+1)) is equal to

If (1)/(6)sin theta,cos theta and tan theta are in GP,then the general value of theta is (i) 2n pi+-(pi)/(3)( ii) 2n pi+-(pi)/(6) (iii) 2n pi+-(-1)^(n)(pi)/(3)( iv )n pi+-(pi)/(3)

if 2sec2alpha=tan beta+cot beta then one of the value of alpha+beta is (A) pi (B) npi- pi/4, n in ZZ (C) pi/4 (D) pi/2

The value of tan(n pi+(pi)/(3)),n in I is

If z=cos theta+i sin theta, then the value of (z^(2n)-1)/(z^(2n)+1)(A)i tan n theta(B)tan n theta(C)i cot n theta(D)-i tan n theta

If tan A = 1, tan B = 2, tan C = 3, then A+B+C = (i) (n pi)/(2); n in Z (ii) (n pi); n in Z ( iii) (n pi)/(4); n in Z (iv) (2n pi)/(3); n in Z