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## Homework Statement

y'=xsec^2(x^2)

**2. The attempt at a solution**

dy/dx=xsec^2(x^2)

dy=xsec^2(x^2)dx

[tex]\int[/tex]dy=[tex]\int[/tex]xsec^2(x^2)dx

lny= (here i'll do a u substitution)

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u=x^2 du=1/3x^3dx

... and here's my problem. It seems like that creates a very difficult u-sub to try and manage. Any suggestions/help?