33. If tan x 1, tan r-1, show that 2 cot (o. B) x show (a

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

If tan^(2)z= tan (x+y) tan (x-y) , show that cot^(2)y+ cot (z+x) cot (z-x)=0

If tan - A tan B = x, cot B - cot A = y prove that cot (A - B) = (1)/(x) + (1)/(y)

What is ( tan x + tan y ) ( 1 - cot x cot y ) + ( cot x + cot y ) ( 1- tan x tan y ) equal to ?

If tan(A/2) =x show that secA+tanA= (1+x)/(1-x)

(i) If tanA-tan B=x and cot B- cot A=y . Prove that cot(A-B)=1/x + 1/y . (ii) If 2 cos A = x+1/x, 2 cos B = y + 1/y , then show that 2 cos (A-B)= x/y+y/x .

(i) If tanA-tan B=x and cot B- cot A=y . Prove that cot(A-B)=1/x + 1/y . (ii) If 2 cos A = x+1/x, 2 cos B = y + 1/y , then show that 2 cos (A-B)= x/y+y/x .

If tan y = (tan x+sec x-1)/(tanx -sec x+1) show that (dy)/(dx) = 1/2