i have to differentiate these
f(x) = (4 - 2x) (8x^2 - 4x)^5
and
y = ln(3x^4 +2x)
how do i do these
i'm not a big fan of math
2007-09-21 08:17:12 · 3 answers · asked by drexelusadly 1 in Science & Mathematics ➔ Mathematics
product rule:
derivative of first times second + derivative of second times first:
=(-2) (8x^2 -4x)^5 + (4-2x) (5)(8x^2-4x)^4 (16x-4)
you could clean it up by adding some like terms, but that is it...
derivative of ln:
1/(3x^4+2x) * (12x^3+2)
(12x^3+2) / (3x^4+2x)
you could also clean this up a little too...
2007-09-21 08:24:29 · answer #1 · answered by sayamiam 6 · 0⤊ 0⤋
For the first one use the product rule combined with the chain rule.
The second is simply a chain rule.
I would do these for you but I don't feel like typing all those numbers and symbols out.. I am not so great at it.
But once you are done you could email it to me and I will check your work ; )
2007-09-21 15:24:48 · answer #2 · answered by Bear 2 · 0⤊ 0⤋
(4 - 2x) (8x^2 - 4x)^5
something like
(4-2x) 5(8x^2-4x)^4 + -2 (8x^2 - 4x)^5
2007-09-21 15:28:48 · answer #3 · answered by Will 4 · 0⤊ 0⤋