Question #10 only!

In problems 1 14, use the substitution method and a known power series to find power series for the given functions. 1 1 2 1 3 1 I 1x4 I 11:5 I 1+);4 4 1 5 1 _1 1 6 1 _1 1 1+X5 5+X_5 1+(X/5) 3K _3 1(X/3) x2 x 2 7. 3 8. 4 9. 1n(1+x) 1+x 1+x 10. 1n(1+x3) 11. arctan(x2) 12. arctan(x3)