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

1/8 -(2x)/4 + 1 = 0 , find the value of x

If 1/6! + 1/7! = x/8! , find the value of x

If x^2 + 1/x^2 = 6 , find the value of x^4 + 1/x^4

If 1/(2!) + 1/(3!) = x/(4!) , find the value of x

If (1)/(4!) + (1)/(5!)=(x)/(6!) , find the value of x.

If (1)/(1(1)/(4)) + ( 1)/( 6(2)/(3)) - ( 1)/( x) + ( 1)/( 10) = (11)/( 12) , then find the value of x

If quad sin^(-1)x_(1)+sin^(-1)x_(2)++sin^(-1)x_(n) =1 then find the value of (x_(1)^(1)+x_(3)^(3)+x_(5)^(5)+...(m+1)terms)/(x_(2)^(2)+x_(4)^(4)+x_(6)^(6)+... mterms )

If 1(2)/(3)+ ( 2)/( 7 ) xx ( x)/( 7) = 1( 1)/( 4) xx ( 2)/( 3) +( 1)/( 6) then find the value of x.

if (1)/(6!)+(1)/(7!)=(x)/(8!) find the value of x