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December 20, 2014

December 20, 2014

Posted by **mike** on Thursday, September 30, 2010 at 2:02pm.

PLEASE EXPLAIN IM LOST

- calculus -
**Sarah**, Monday, November 29, 2010 at 5:27amYou use the quotient rule of :[u'v -uv']/v^2

so:

u=(6x+1) v=(19x+1)^1/2

u'=6 v'= [1/2(19x+1)^-1/2] (19)

y' = 6[(19x+1)^1/2] - (6x+1)[1/2(19x+1)^-1/2] (19)

you can simplify it by taking a common factor. In this case its easier to take (19x+1)^-1/2--- Always take the lowest common factor.

y'=[[19x+1]^-1/2] 6(19x+1) -(6x+1)(1/2)(19)

y'=[[19x+1]^-1/2] 114x+6-57x+9.5

Final answer:

y'=[[19x+1]^-1/2] 57x + 15.5

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