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Mathematics 11 Online
OpenStudy (anonymous):

Differentiate the function

OpenStudy (anonymous):

\[y=\sqrt{x}(x-4)\]

OpenStudy (anonymous):

you can multiply out and get \[\large y=x^{\frac{3}{2}}-4x\] then use the all mighty power rule

OpenStudy (anonymous):

you got that or no?

OpenStudy (anonymous):

so i put 3/2 in front of x and subtract one from the exponent

OpenStudy (anonymous):

zactly

OpenStudy (anonymous):

the exponent would be 1/2 correct?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

so this is what I got \[y=\frac{ 3 }{ 2 }x ^{\frac{ 1 }{ 2 }}- 4\]

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

which you could also write as \[y'=\frac{3}{2}\sqrt{x}-4\] if you like

OpenStudy (anonymous):

the hardest part of calc one is adding and subtracting fractions

OpenStudy (anonymous):

this answer was no correct because it locked me out of the question making it wrong...

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