# Chain Rule. Just need answer for this question

• March 16th 2012, 04:39 PM
huhuh
Chain Rule. Just need answer for this question
Find the derivative of N(t) = 150 - 600 / sqrt.(16 + 3t^2)
• March 16th 2012, 04:43 PM
skeeter
Re: Chain Rule. Just need answer for this question
Quote:

Originally Posted by huhuh
Find the derivative of N(t) = 150 - 600 / sqrt.(16 + 3t^2)

rewrite ...

$N(t) = 150 - 600(16+3t^2)^{-\frac{1}{2}}$

... do the chain rule.
• March 16th 2012, 04:45 PM
huhuh
Re: Chain Rule. Just need answer for this question
Quote:

Originally Posted by skeeter
rewrite ...

$N(t) = 150 - 600(16+3t^2)^{-\frac{1}{2}}$

... do the chain rule.

Just confused as to how to do the chain rule with the 150
• March 16th 2012, 04:48 PM
skeeter
Re: Chain Rule. Just need answer for this question
Quote:

Originally Posted by huhuh
Just confused as to how to do the chain rule with the 150

the derivative of a constant is zero