Maths C1 Flashcards 1.0 / 5 based on 1 rating ? MathematicsC1ASEdexcel Created by: akelly_3102Created on: 01-05-18 18:24 Algebra & Functions - Surds (i) √xy = √x * √y (ii) √x/y = √x/√y (iii) a√x ± b√x = (a ± b)√x 1 of 5 Algebra & Functions - Rationalizing Surds Given 1/√a, multiply by √a/√a. Given 1/a ± √b, multiply by a ± √b / a ± √b 2 of 5 Algebra and Functions - Indices (i) (a^m)^n = a^mn (ii) a^-n = 1/a^n (iii) a^1/n = n√a (iv) a^m/n = n√a^m = (n√a)^m 3 of 5 Algebra & Functions - Discriminant For f(x) = 0, b^2 - 4ac > 0 --> two real, distinct roots. b^2 - 4ac = 0 --> two real, equal roots. b^2 - 4ac < 0 --> two unreal roots 4 of 5 bla bal basa 5 of 5

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