Q. 24

# Let f : R <span l

Formula :- (I)Let f : A B and g : B C be two functions.

Then, the composition of f and g, denoted by g o f, is defined as the function g o f : A C

given by g o f (x) = g (f (x))

Given:-

(i)f : R R

(ii)g : R R

(iii) f(x) = x2 + x + 1

(iv)g(x) = 1 – x2

Fog(-2)=f(g(-2)) Fog(-2)=f(1-(-2)2) Fog(-2)=f(-3) Fog(-2)=(-3)2-3+1=7

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