Topic Details (Notes format)

How to Use the Binomial Theorem

Subject: Mathematics

Book: Maths Mastery

The Binomial Theorem expands expressions of the form (a + b)^n into a sum of terms involving binomial coefficients: (a + b)^n = Σ [C(n, k) × a^(n–k) × b^k], from k=0 to n. For example, (x + 2)^3 = x^3 + 3x^2(2) + 3x(2^2) + 2^3 = x^3 + 6x^2 + 12x + 8. This powerful tool streamlines expansions for higher-degree polynomials, used in probability distributions (like the binomial distribution), symbolic manipulation, and advanced algebraic problem-solving. Familiarity with binomial coefficients—C(n, k)—further connects to combinations, bridging algebra and combinatorics elegantly.

Practice Questions

A cone has a base radius of 7 cm and height of 24 cm. What is its volume?

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The simple interest on Rs. 4000 at 5% per annum for 2 years is:

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The probability of rolling a sum of 7 with two dice is:

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How many ways can 4 people sit in a row?

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If x^2 - 6x + 9 = 0, what is the value of x?

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If a right triangle has legs of 9 cm and 12 cm, what is the length of the hypotenuse?

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What is the 7th term of the arithmetic progression 3, 6, 9, 12,...?

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What is the sum of the interior angles of a hexagon?

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What is the sum of the first 50 positive integers?

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