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What is the domain and range of #(x^4 + x^2) /(1+x^2)#?

1 Answer

Mar 30, 2016

Domain: #x#
Range: #x^2#

Explanation:

Given,

#f(x)=(x^4+x^2)/(x^2+1)#
# or, f(x)=(x^2*(x^2+1))/(x^2+1)#
Hence, #f(x)=x^2#

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