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#1 2007-07-30 14:23:14

Mel
Guest

Differentiation- help =[

Given that y = ax^3 + x^2 + bx +3,  y'(2) = 50,  y''(1) = 23 find a and b

I know the answers are a = 3.5 and b= 4 but i have no idea how to get that

Help pleease

#2 2007-07-30 15:17:51

bossk171
Member
Registered: 2007-07-16
Posts: 305

Re: Differentiation- help =[

first, find the y'(x) and y''(x)



So...


solving y''(1) for a we get

pugging that into y'(2) and solving for a we get:


There are 10 types of people in the world, those who understand binary, those who don't, and those who can use induction.

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