00:01
In this problem, we have been given two functions, f of x and g of x.
00:05
Now, first of all, we need to determine f composition d.
00:08
By the definition of the composition of two functions, f composition g of x will be equal to f of g of x.
00:15
So this will be equal to f of 1 divided by x because d of x is given to be equal to 1 by x.
00:22
Now, we can obtain f of 1 by x by x by replacing x by 1 by x in the expression for f of x.
00:27
So this will become equal to 1 divided by x by 1 by x whole square plus 1.
00:37
So this will become 1 by x divided by 1 by x squared plus 1.
00:45
That is multiply the numerator and denominator by x square.
00:48
So in the numerator we have x square times 1 by x which is x...