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Question Number 93844 by mhmd last updated on 15/May/20

$$letf\left(x\right)=\sqrt{x}andg\left(x\right)=\sqrt{x}findthedomainof(f.g)\left(x\right)?$$$$helpmesir$$

Answered by  M±th+et+s last updated on 15/May/20

$$(f.g)\left(x\right)=f\left(\sqrt{x}\right)=\sqrt{\sqrt{x}}sodomainandrangeare[0,\mathrm{\infty })$$$$$$

Commented by  M±th+et+s last updated on 15/May/20

$$$$$$therange$$$$weknowthat0⩽\sqrt{x}⩽\mathrm{\infty }.......\sqrt{}$$$$\sqrt{0}⩽\sqrt{\sqrt{x}}<\sqrt{\mathrm{\infty }}$$$$0⩽f\left(x\right)<\mathrm{\infty }$$$$$$$$$$

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