{x+1}+2x=4[x+1]-6

number of solution of the integral part of {1+x}+2x=4[x+1]-6 is

Prove the following: tan 4x =(4tan x (1-tan^2x))/(1-6 tan^2x + tan^4x)

((x ^ (2) + 4x + 6) (x ^ (2) + x + 1)) / (x ^ (2) -x + 1) <= 0

Square root of (x^2+1/x^2)-4/i(x-1/x)-6 is

Find the square roots of : x^2+1/x^2-4/i (x-1/x)-6 .

Prove that 2 log x-log (x +1)-log (x -1)= 1/x^2+1/(2x^4)+1/(3x^6) +......, where |x|<1.

Without expanding, find the value of: (i) (x + 1)^4 - 4(x + 1)^3 (x - 1) + 6(x + 1)^2 (x - 1)^2 - 4(x + 1) (x - 1)^3 + (x -1)^4 (ii) (2x - 1)^4 + 4(2x - 1)^3 (3 - 2x) + 6(2x - 1)^2 (3 - 2x)^2 + 4(2x - 1) (3 - 2x)^3 + (3 - 2x)^4

If |[2,4],[5,1]|=|[2x,4],[6,x]| then x is

The HCF of x^6 - 1 and x^4 + 2x^3 - 2x^(1) - 1 is: