Cambridge Maths Academy

Pure mathematics Year 2 Here's a short introduction to Pure maths 2 Chapter 2 Functions and graphs. 2.1 The modulus function: Understand and use the modulus function. 2.2 Functions and mappings: Understand mappings and functions, and use domain and range. 2.3 Composite functions: Combine two or more functions to make a composite function. 2.4 Inverse functions: Know how to find the inverse of a ..

수학 모음 (Maths collection) 전체보기 Question. Find $\frac{dy}{dx}$ for: $$ \begin{align} \textrm{(a)}&\qquad y = \arcsin(1-2x) \\ \textrm{(b)}&\qquad y = \arctan\left(x^2+1\right) \end{align} $$ Solution. (a) For $y=\arcsin(1-2x)$, we have $$ \begin{gather} -1\le 1-2x \le 1 \\ -\frac{\pi}{2}\le y \le\frac{\pi}{2} \end{gather} $$ We re-express the equation $$ \begin{align} y&=\arcsin(1-2x) \\ \Rightarr..

Core pure mathematics 2 Table of contents Complementary function + Particular integral An example Another example Yet another example An investigation: more general cases Exercise 7C 1. Complementary function + Particular integral Second-order differentail equations of the form $$ \begin{align} a \frac{ \textrm{d}^2y }{ \textrm{d}x^2 } + b \frac{ \textrm{d}y }{ \textrm{d}x } + c y = \textrm f(x)..