# 2nd Video: The Relationship Between Central Angle and Inscribed Angle on Circles

# 1st Video: Derivation of Trigonometric Identities

# Quiz: Random Problems 04 (Moderate)

# Quiz: Random Problems 03 (Moderate)

# Quiz: Random Problems 02 (Hard)

# Quiz: Random Problems 01 (Easy)

# 03 Area Enclosed by Cardioids: r = a(1 + sin θ); r = a(1 - sin θ), r = a(1 + cos θ), r = a(1 - cos θ)

# Two Gamblers Play Until One is Bankrupt: Chance That the Better Player Wins

**Problem**

Player *M* has Php1, and Player *N* has Php2. Each play gives one the players Php1 from the other. Player *M* is enough better than player *N* that he wins 2/3 of the plays. They play until one is bankrupt. What is the chance that Player *M* wins?

A. 3/4 | C. 4/7 |

B. 5/7 | D. 2/3 |