If `tan(alpha+theta)=n tan(alpha-theta)` then value of `(n+1)/(n-1)=`

If tan (alpha + theta) = n tan(alpha - theta) , show that : (n + 1) sin 2 theta = (n - 1) sin 2alpha .

If tan(alpha+theta)=n tan(alpha-theta), show that (n+1)sin2 theta=(n-1)sin2 alpha.

If tan (alpha+theta)=n tan (alpha-theta) ,show that: (n+1)"sin" 2theta=(n-1) sin 2alpha

If "tan"(alpha+theta)=n "tan"(alpha-theta) ,ahow that: (n+1)"sin"2 theta=(n-1)"sin"2alpha

If tan(alpha+beta)=n tan(alpha-beta) then show that (n+1)sin2 beta=(n-1)sin2 alpha

If tan theta+sin theta=m and tan theta-sin theta=n

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 sin theta =3 sin ( theta + 2 alpha), then the value of tan (theta + alpha) + 2 tan alpha is

If sin(theta+alpha)=cos(theta+alpha) then the value of tan theta is