`"I f"(1-tan2cot6 2)/(tan15 2-cot8 8)=ksqrt(3)` then k=

If (1- tan2^(@) cot 62^(@))/( tan 152^(@) - cot88^(@))=ksqrt(3) , then value of k is

If int ( 1+cos 8x)/( tan 2x-cot 2x)dx = k cos 8x+ C , then k equals

If tan x+2tan2x+4tan4x+8cot8x=sqrt(3) rtehn the general solution of x is

(sec 8 A-1)/( sec 4A-1)= ..................... A) (tan 2A)/( tan 8A) B) (tan 8A)/(tan 2A) C) (cot 8A)/(cot 2A) D) (tan 6A)/(tan 2A)

Let f(x)=tan^(-1)((1)/(2)tan2x)+tan^(-1)(cot x)+tan^(-1)(cot^(3)x)then (1) f((3 pi)/(8))=pi(2)f((pi)/(8))=0(3)f((pi)/(8))=pi(4)f((3 pi)/(8))=0

Show that ((1+tan ^(2) A) /(1+cot ^(2) A ) ) =((1+ tan )/( 1-cot A ))^(2)= tan ^(2) A

Show that ((1+tan ^(2) A) /(1+cot ^(2) A ) ) =((1+ tan )/( 1-cot A ))^(2)= tan ^(2) A

If A=Tan^(-1)((xsqrt(3))/(2k-x)) and B=Tan^(-1)((2x-k)/(ksqrt(3))) then A-B=

Let f(x)=tan^(-1)(1/2 tan2x)+tan^(-1)(cotx)+tan^(-1)(cot^3x) then (1) f((3 pi)/8)=pi (2) f(pi/8)=0 (3) f(pi/8) =pi (4) f((3pi)/8)=0