Okay, I'm majorly confused!
For tonight's homework I got to number 11.
I attempted all of the others, but I'm still confused on how to get u for number three (I got it from calcchat, but I want to know HOW) and how tan^2xsec^2x(dx) is u=tanx and du=sec^2x(dx) on number 5. What happened to the ^2 on the tan? I thought dx/dx(tanx)=sec^2x???
Also....once I got to number 11..I died. I can't figure out how to do anything after figuring out what u and du is.
Can someone explain what do to next?
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