Question

a + b)2 = 1a2 + 2ab + 1b2 (a + b)3 = 1a3 + 3a2b + 3ab2 + 1b3 How are binomial expansions related to Pascal’s triangle?

Answer 1

Pascal triangles gives us the coefficients for an expanded binomial of the form (a+b)n,where n is now the row of the triangle..

Answer 2

The coefficients of the terms come from rows of the triangle.If the exponent is n, look at the entries in row n.