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Help with FP2 hyperbolic functions questions

image.jpg Hi, if anyone could help with questions 11 and 12 it would be much appreciated, no idea what to do 😬 Thanks
Original post by DjangoM
Hi, if anyone could help with questions 11 and 12 it would be much appreciated, no idea what to do 😬 Thanks


Q11 - Split into 044xx2+9.dx+041x2+9.dx\displaystyle \int_0^4 \frac{4x}{\sqrt{x^2+9}} .dx + \int_0^4 \frac{1}{\sqrt{x^2+9}} .dx and use substitution for the first one. Second one is a standard integral.

Q12 - Use substitution in the first part, and the second is IBP.

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