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Question Number 158054 by zainaltanjung last updated on 30/Oct/21
Find the composition function  that can be form from two this  single functions below :  f(x)=2x+4   g(x)= ((2x−7)/(3x))  • fog(x)=.......  • gof(x)=......
$$\mathrm{Find}\:\mathrm{the}\:\mathrm{composition}\:\mathrm{function} \\ $$$$\mathrm{that}\:\mathrm{can}\:\mathrm{be}\:\mathrm{form}\:\mathrm{from}\:\mathrm{two}\:\mathrm{this} \\ $$$$\mathrm{single}\:\mathrm{functions}\:\mathrm{below}\:: \\ $$$$\mathrm{f}\left(\mathrm{x}\right)=\mathrm{2x}+\mathrm{4}\: \\ $$$$\mathrm{g}\left(\mathrm{x}\right)=\:\frac{\mathrm{2x}−\mathrm{7}}{\mathrm{3x}} \\ $$$$\bullet\:\mathrm{fog}\left(\mathrm{x}\right)=……. \\ $$$$\bullet\:\mathrm{gof}\left(\mathrm{x}\right)=…… \\ $$
Answered by MathsFan last updated on 30/Oct/21
•fog(x)=2(((2x−7)/(3x)))+4  fog(x)=((16x−14)/(3x))    •gof(x)=((2(2x+4)−7)/(3(2x+4)))   gof(x)=((4x+1)/(6x+12))
$$\bullet\mathrm{fog}\left(\mathrm{x}\right)=\mathrm{2}\left(\frac{\mathrm{2x}−\mathrm{7}}{\mathrm{3x}}\right)+\mathrm{4} \\ $$$$\mathrm{fog}\left(\mathrm{x}\right)=\frac{\mathrm{16x}−\mathrm{14}}{\mathrm{3x}} \\ $$$$ \\ $$$$\bullet\mathrm{gof}\left(\mathrm{x}\right)=\frac{\mathrm{2}\left(\mathrm{2x}+\mathrm{4}\right)−\mathrm{7}}{\mathrm{3}\left(\mathrm{2x}+\mathrm{4}\right)} \\ $$$$\:\mathrm{gof}\left(\mathrm{x}\right)=\frac{\mathrm{4x}+\mathrm{1}}{\mathrm{6x}+\mathrm{12}} \\ $$
Commented by zainaltanjung last updated on 31/Oct/21
Ok.thanks you sir
$$\mathrm{Ok}.\mathrm{thanks}\:\mathrm{you}\:\mathrm{sir} \\ $$

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