ShakaRiya
ShakaRiya ShakaRiya
  • 13-08-2018
  • Mathematics
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Please help me with number 4 a and b please

Please help me with number 4 a and b please class=

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gmany
gmany gmany
  • 14-08-2018

[tex] (a)\\f(x)=\dfrac{x}{4}\\\\f\left(\dfrac{1}{2}\right)=\dfrac{\frac{1}{2}}{2}=\dfrac{1}{2\cdot2}=\dfrac{1}{4}\\\\(b)\\\\y=\dfrac{x}{4}\ \ \ \ |\cdot4\\\\4y=x\to f^{-1}(x)=4x [/tex]

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