3 2 p 115 1 Derivative of a

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3. 2 (p. 115) 1. Derivative of a constant in zero (p. 115上) 2.

3. 2 (p. 115) 1. Derivative of a constant in zero (p. 115上) 2. Power Rule (p. 115下) n: real 3. (p. 116中) 2

3. 2 (p. 115) 4. Sam & Difference Rules (p. 117下) 即 即 3

3. 2 (p. 115) 4. Sam & Difference Rules (p. 117下) 即 即 3

3. 2 (p. 115) 5. Product Rule (p. 140上) 6. Quotient Rule (p. 142中)

3. 2 (p. 115) 5. Product Rule (p. 140上) 6. Quotient Rule (p. 142中) 7. Chain Rule (p. 140下) 4

3. 2 (p. 115) 8. General Power Rule or 5

3. 2 (p. 115) 8. General Power Rule or 5

3. 5 The Product (積) & Quotient Rule (商) 3. Product Rule Let ,

3. 5 The Product (積) & Quotient Rule (商) 3. Product Rule Let , , then 即 (或 ) 7

3. 5 The Product & Quotient Rule 範例 EX: , 求 sol: 9

3. 5 The Product & Quotient Rule 範例 EX: , 求 sol: 9

3. 5 The Product (積) & Quotient Rule (商) 4. Quotient Rule EX: ,

3. 5 The Product (積) & Quotient Rule (商) 4. Quotient Rule EX: , find the derivative of sol: 11

3. 6 The Chain Rule 範例 EX: 若 sol: let EX: 求 sol: let

3. 6 The Chain Rule 範例 EX: 若 sol: let EX: 求 sol: let 14

3. 6 The Chain Rule • 因此若前面的power rule中的x是另一個函數的話, 則可修改如下: – General Power Rule u

3. 6 The Chain Rule • 因此若前面的power rule中的x是另一個函數的話, 則可修改如下: – General Power Rule u is a differentiable function of x and n is a real number 15

3. 7 High-Order Derivatives (高階導函數) EX: 則 or or EX: , 求 , ,

3. 7 High-Order Derivatives (高階導函數) EX: 則 or or EX: , 求 , , 21

3. 7 High-Order Derivatives (高階導函數) EX: 若一公司生產物品的成本為 ,請求出當 的邊際成本(marginal cost)的rate of change。 sol: marginal

3. 7 High-Order Derivatives (高階導函數) EX: 若一公司生產物品的成本為 ,請求出當 的邊際成本(marginal cost)的rate of change。 sol: marginal cost 即求 即 ,而求marginal cost的rate of change (即遞減的固定變化量) 。 24

3. 8 Implicit Differentiation (隱微分) EX: sol: 各別做 ∴ 26

3. 8 Implicit Differentiation (隱微分) EX: sol: 各別做 ∴ 26

3. 8 Implicit Differentiation (隱微分) EX: , 求微分 sol: 27

3. 8 Implicit Differentiation (隱微分) EX: , 求微分 sol: 27