1.5 exercise 45

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1.5 exercise 45

Nicholas
I can't seem to understand how to solve question 45. It's f(x)=cuberoot of x.
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Re: 1.5 exercise 45

Carl Stitz
Administrator
Hello!

You want to use the  "hint" and multiply numerator and denominator by (cuberoot of x+h)^2 + cuberoot of (x+h) * cuberoot of x + (cuberoot of x)^2...  that should get the numerator to multiply out to (x+h)-x = h to cancel the "h" in the denominator.
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Re: 1.5 exercise 45

Nicholas
Thank you so much for the response! It makes a lot of sense now.