`(2^-1+4^-1+6^-1+8^-1)^x=1`, find the value of x.

If cos^(-1).(6x)/(1 + 9x^(2)) = -(pi)/(2) + 2 tan^(-1) 3x , then find the values of x

Given ((8)/(27))^(x- 1) = ((9)/(4))^(2x+ 1) , find the value of x .

If A-=(6, 1), B-= (1, 3), C -=(x, 8) , find the value of x such that AB=BC

If 2^(x)=4^(y)=8^(z) and (1)/(2x)+(1)/(4y)+(1)/(8z)=4 find the value of x.

If |[1, x, x^2], [x, x^2, 1], [x^2, 1, x]|=3, then find the value of |[x^3-1, 0, x-x^4], [0, x-x^4, x^3-1], [x-x^4, x^3-1, 0]|

If x- (1)/ (x ) = 4 , find the value of : x+ (1)/(x)

If tan^(-1)((x-1)/(x-2))+tan^(-1)((x+1)/(x+2))=pi/4, then find the value of xdot

If x = sqrt((n-1)/(n+1)) , find the value of (x/(x-1))^2+(x/(x+1))^2

If cos^(-1)((6x)/(1+9x^2))=-pi/2+2tan^(-1)3x , then find the value of xdot

If 2^x=3^y=6^(-z) find the value of (1/x+1/y+1/z)