Maths - Pure A-Level Edexcel Study Guide Rated A+

What is a kite? {Ans: A quadrilateral where 2 sides are the same length and the other two are also the same length.}Prove 97 is a prime number. {Ans: (proof by exhaustion)}What constitutes a function regarding inputs of x --> y? {Ans: 1 or more input of x to 1 input of y}How do you know if you can inegrate a fraction to logarithmic form? {Ans: If the derivative of the denominator is in the numerator.}What is sin2x simplified? {Ans: 2sinxcosx}What is a rational number? {Ans: any number that can be written as a fraction a/b where they are whole numbers and a/b is in its simplest form.}Use the trapezium rule on the ∫√e^xsin(x)dx between 3 and 1. Use 3 trapeziums. {Ans: 4.42 to 3.s.f}Write (2x²-18x-32)/(5-x)(x+1) {Ans: }How do you know if a staircase/cobweb diagram will converge or diverge from a point? {Ans: }How do you know how to draw a cobweb/staircase diagram? {Ans: Remember itterative method is writing in form such as xₙ₊₁=x³ₙ/15 + 1 Line is always y=x Curve will be something like x³/15 + 1 Curve, line, curve, line (cl in alphabetical order).}If you were doing the