If `1/(8!)+1/(9!)=x/(10 !),`find x

If 1/(9!)+1/(10 !)=x/(11 !) , find xdot

If 1/(6!)+1/(7!)=x/(8!), find x

Prove that If (1)/(9!) +(1)/( 10!) =(x)/( 11!) , Find x.

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

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

If 4^(1+x)+4^(1-x)=10 , find x.

The expansion by the binomial theorem of (2 x + (1)/(8) )^(10) is 1024x^(10) + 640x^(9) + ax^(8) + bx^(7) + … Calculate (ii) coefficient of x^(8) in (3x -2) ( 2x + (1)/(8) )^(10) ,

If 3x + (1)/(3x) = 3 , find : (i) 9x^(2) + (1)/(9x^2)

If 3x - (1)/(3x ) =5 , find : (i) 9x^(2) + (1)/( 9x^2)

The expansion by the binomial theorem of (2 x + (1)/(8) )^(10) is 1024x^(10) + 640x^(9) + ax^(8) + bx^(7) + … Calculate (iii) the value of x , for which the third ·and the fourth terms in the expansion of (2x + (1)/(8) )^(10) are equal.