If (f(x)=x^ 2 -4x+3 ) and (g(x)= x )

MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

If f(x)=x2−4x+3f(x)=x^{2}-4x+3 and g(x)=xg(x)=\sqrt{x}, then the domain of g∘fg\circ f is (a) (1,3)(1,3) (b) (−∞,1]∪[3,∞)(-\infty,1]\cup[3,\infty) (c) [0,∞)[0,\infty) (d) (−∞,1)∪(3,∞)(-\infty,1)\cup(3,\infty)

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