[" 4.If "(1)/(9!)+(1)/(10!)=(x)/(11!)," the "x=],[[" (1) "121," (2) "11],[" (3) "1331," (4) "101]]

If (1)/(9!)+(1)/(10!)=(x)/(11!) then x=

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

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

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

(x-3)/(9)-(x-2)/(10)=1

Prove that: (1)/(9!)+(1)/(10!)+(1)/(11!)=(122)/(11!)

(i) If (1)/(9!)+(1)/(10!)=(n)/(11!) , find n. (ii) If (1)/(8!)+(1)/(9!)=(x)/(10!) , find x.

Prove that: 1/(9!)+1/(10 !)+1/(11 !)=(122)/(11 !)

If ( 10)^(9) + 2( 11)^(1) ( 10)^(8)+ 3 ( 11)^(2) ( 10)^(7)+"……….." + 10 ( 11)^(9)= k ( 10)^(9) , then k is equal to :