namitashahi namitashahi

09-04-2022
Mathematics

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If f(x)=2x-3 then find the expression given by f(a+h)-f(a)/h

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loneguy loneguy

09-04-2022

[tex]\text{Given that,}~ f(x) =2x-3\\\\\dfrac{f(a+h) - f(a)}{h}\\\\=\dfrac{(2(a+h)-3)-(2a-3)}{h}\\\\=\dfrac{2a+2h-3-2a+3}h}\\\\=\dfrac{2h}{h}\\\\=2[/tex]

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