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Que. The functions mapping R into R are defined as:

f(x) = x^3-4x, g(x)=1/(x^2+1) and h(x)=x^4

Then find the value of the following composite functions:
hog(x) and hogof(x)
a. (x^2+1)^4 and [(x^3-4x)^2+1]^4
b. (x^2+1)^4 and [(x^3-4x)^2+1]^-4
c. (x^2+1)^-4 and [(x^3-4x)^2+1]^4
d. (x^2+1)^-4 and [(x^3-4x)^2+1]^-4
Answer:(x^2+1)^-4 and [(x^3-4x)^2+1]^-4
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