Only 15

13-16 Confirm that the formula is the local linear approxima- tion at xo = 0, and use a graphing utility to estimate an interval of x-values on which the error is at most 10.1. 13. Vx +3 ~ V3+ X 14. 2V/3 V9Ex 54 15. tan 2x ~ 2x 16. ~I- 10x (1 + 2x)5