If `tan alpha = x+1, tan beta = x -1`, show that `2 cot(alpha-beta)=x^2`

If tan alpha=x+1,tan beta=x-1, show that 2cot(alpha-beta)=x^(2)

If tan alpha=x+1,tan beta=x-1, show that 2cot(alpha-beta)=x^(2)

If n tan alpha=(n+1)tan beta then show that tan(alpha-beta)=(sin2 beta)/(2n+1-cos2 beta)

if tan alpha=2tan beta show that (sin(alpha+beta))/(sin(alpha-beta))=3

If tan alpha=(x)/(x+1) and tan beta=(1)/(2x+1), then alpha+beta is

if tan alpha-tan beta=x and cot beta-cot alpha=y prove that cot(alpha-beta)=(x+y)/(xy)

If tan theta=(tan alpha+tan beta)/(1+tan alpha tan beta) then show that sin2 theta=(sin2 alpha+sin2 beta)/(1+sin2 alpha sin2 beta)

If sin beta = 1/5 sin(2alpha +beta) , show that tan(alpha +beta) = 3/2 tan alpha .

If sin2 alpha=4sin2 beta, show that 5tan(alpha+beta)=3tan(alpha+beta)

If tan (alpha + beta) = 2 and tan (alpha - beta) = 1, then tan (2 alpha ) is equal to: