Find`\ x` in each of the following: `1/(4!)+1/(5!)=x/(6!)`

Find \ x in each of the following: 1/(6!)+1/(7!)=x/(8!)

Find x in each of the following: (1)/(6!)+(1)/(7!)=(x)/(8!)

Find f''(x) in each of the following cases: f(x)=1/(x^2-5x+6)

Find the value of x in each of the following : 1(1)/(9) : x : : (1)/(3) : (1)/(4)

Find the each of the following products: (x^(4) + (1)/(x^(4)))(x + (1)/(x))

If (1)/(4!)+(1)/(5!)=(x)/(6!) find x

Find the value of x in each of the following: (i)\ 5^(2x+3)=1 (ii)\ (13)^(sqrt(x))=4^4-3^4-6 (iii)\ (sqrt(3/5))^(x+1)=(125)/(27)

Find each of the following products : (4x + 9) xx (x - 6)

Find the value of x in each of the following: 5^(2x+3)=1 (ii) (13)^(sqrt(x))=4^(4)-3^(4)-6(sqrt((3)/(5)))^(x+1)=(125)/(27)

If x in{-2,-1,0,1,2,3,4,5} , find the solution set of each of the following inequations : (7)/(4)-3xlt(5)/(6)