Differentiation (1 Viewer)

[FOREVERLOVE]

Hey guys! Could someone please help me with this question?
Differentiate with respect to x:

please

 

[RealiseNothing]

Hey guys! Could someone please help me with this question?
Differentiate with respect to x:

please

Do you know the quotient rule?

Use quotient rule directly, or note that:



And then use product rule.

Or this.

 

[Shadowdude]

Use quotient rule directly, or note that:



And then use product rule.

 

[FOREVERLOVE]

yes! I know the quotient rule but I still dont know how to finish off the question :-(

 

[Shadowdude]

yes! I know the quotient rule but I still dont know how to finish off the question :-(

show us your working then

 

[FOREVERLOVE]

wait, nevermind! Got it thaank you!

 

[Carrotsticks]

Use quotient rule directly, or note that:



And then use product rule.

Alternatively, you could use a bit of manipulation, which will totally avoid the need of a quotient (or product rule for that matter).



Now you can proceed to differentiate as usual.

 

[Parvee]

Alternatively, you could use a bit of manipulation, which will totally avoid the need of a quotient (or product rule for that matter).Now you can proceed to differentiate as usual.

Wow, that's pretty sneaky.

 

[SpiralFlex]

^Handy for integraaaaattiiiioooonnnn!

 

[Shadowdude]

Alternatively, you could use a bit of manipulation, which will totally avoid the need of a quotient (or product rule for that matter).



Now you can proceed to differentiate as usual.

/claps

smart.

 

[FOREVERLOVE]

I have another question!
Q: At x=2 there is a turning point on y= x^3 - cx^2 +12x -5. Find C.

Anyone help me pleaseeeeee?

 

[Carrotsticks]

1. Differentiate the function and let it be equal to 0.

2. Substitute x=2.

3. Solve for C.