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Contents

Binomial Expansion

Problems

Pascal's Triangle

The Binomial Theorem

Problem : What is the 5th entry in Row 12 of Pascal's Triangle?

C(12, 4) = 495 .

Problem : What is the 3rd entry in Row 10 of Pascal's Triangle?

C(10, 2) = 45 .

Problem : What is the 7th entry in Row 9 of Pascal's Triangle?

C(9, 6) = 84 .

Problem : What is the 15th entry in Row 15 of Pascal's Triangle?

C(15, 14) = 15 .

Problem : If the r th entry in Row 6 of Pascal's Triangle is 15, what are the possible values of r ?

r = 3 or r = 5 .

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