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December 4, 2016
Posted by **ZUkii** on Friday, December 16, 2011 at 1:45pm.

1/1+4tdt

- calculus -
**Reiny**, Friday, December 16, 2011 at 1:47pmI will assume you meant

1/(1+4t) dt or else the expression would simply be 1 + 4t

∫ 1/(1+4t) dt = (1/4) ln(1+4t)