DERIVATIVE (section 28) -- definition of derivative and geometric meaning; be able to decide whether the function is differentiableand compute derivative directly from definition -- Theorem: differentiablility implies continuity (know proof). Know why converse is not true (counterexamples). -- Basic differentiation rules (sum, product, quotient) as in Thm 28.3 (know proofs). Chain rule (proof not required) Practice: examples 1-3 p.224, questions 28.3, 28.7, 28.9, 28.11, homework 11 MEAN VALUE THEOREM, RELATED RESULTS AND COROLLARIES (section 29) -- Derivative is zero at max/min points (know precise statements and proofs). -- Statements and proofs of the MVT and Rolle's theorem, geometric meaning -- a function with identically zero derivative is constant -- increasing/decreasing functions, relation to positive/negative derivatives (know precise statements and proofs for all cases: does increasing function have positive derivative? Does a function with negative derivative strictly decrease?) Practice: homework 12 TAYLOR APPROXIMATION AND SERIES (part of section 31) -- Definition for the Taylor approximation, remainder and Taylor series centered at c, for a function which is differentiable the required number of times (be able to write out approximations for a given function, via direct computation) -- Taylor's theorem on remainder estimates (Thm 31.3+corollary 31.4). Proofs are not required, but you should know the statements and be able to use them to establish convergence of simple Taylor series. -- Know Taylor series for functions such as sin x, cos x, exp(x), with *proof of convergence*. Practice: examples 1.2 pp.252-253, questions 31.1, 31.2; also, write a Taylor series for 1/(1-x) and study its convergence