# Precalculus

#### Non-trigonometry pre-calculus topics. Learn this before Calculus. Created by Khan Academy.

###### Average Course Length

9 hours

###### Skill Level

Beginner

##### Pick a lesson

1: Introduction to Limits (HD)

2: Limit Examples (part 1)

3: Limit Examples (part 2)

4: Limit Examples (part3)

5: Limit Examples w/ brain malfunction on first prob (part 4)

6: Squeeze Theorem

7: Proof: lim (sin x)/x

8: More Limits

9: Sequences and Series (part 1)

10: Sequences and series (part 2)

11: Permutations

12: Combinations

13: Binomial Theorem (part 1)

14: Binomial Theorem (part 2)

15: Binomial Theorem (part 3)

16: Introduction to interest

17: Interest (part 2)

18: Introduction to compound interest and e

19: Compound Interest and e (part 2)

20: Compound Interest and e (part 3)

21: Compound Interest and e (part 4)

22: Exponential Growth

23: Polar Coordinates 1

24: Polar Coordinates 2

25: Polar Coordinates 3

26: Parametric Equations 1

27: Parametric Equations 2

28: Parametric Equations 3

29: Parametric Equations 4

30: Introduction to Function Inverses

31: Function Inverse Example 1

32: Function Inverses Example 2

33: Function Inverses Example 3

34: Basic Complex Analysis

35: Exponential form to find complex roots

36: Complex Conjugates

37: Series Sum Example

38: Complex Determinant Example

39: 2003 AIME II Problem 8

40: Logarithmic Scale

41: Vi and Sal Explore How We Think About Scale

42: Vi and Sal Talk About the Mysteries of Benford's Law

43: Benford's Law Explanation (Sequel to Mysteries of Benford's Law)