MATH 221 Lecture 5: Substitution in Limits

Find the equation for the tangent lin y = x cos 3 x, x = pi. y = (x - 1/x) 3, x = 2. C:\Documents and Settings\zamorm\My Document

2 (2) Consider the power seres 212-+....... What rational function 3 927 does this power series represent? (3) If f(x) -8 lim- = 10. Find lin/(r).

discover? 3. In this problem we will explore why "1o is an indeterminate form. (a) Prove that lin.(1 +흙)-1 (b) Prove that lim e (c) Prove that lim 1+