This is part of a collection of videos showing step-by-step solutions for Edexcel A-Level Mathematics past papers.

This page covers Questions and Worked Solutions for Edexcel Oct 2021 IAL Pure Maths, WMA11/01.

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Edexcel Oct 2021 IAL Pure Maths WMA11/01 (pdf)

- Find

giving each term in simplest form. - A curve has equation

y = 3x^{5}+ 4x^{3}– x + 5

The points P and Q lie on the curve.

The gradient of the curve at both point P and point Q is 2

Find the x coordinates of P and Q. - Solve

3/x > 4 - Figure 2 shows a sketch of the curve with equation y = f(x), where
- The line l1 has equation 3y – 2x = 30

The line l2 passes through the point A(24, 0) and is perpendicular to l1.

- A curve C has equation y = f(x) where
- Figure 3 shows the design for a sign at a bird sanctuary.

The design consists of a kite OABC joined to a sector OCXA of a circle centre O.

In the design

- OA = OC = 0.6m
- AB = CB = 1.4m
- Angle OAB = Angle OCB = 2 radians
- Angle AOC = θ radians, as shown in Figure 3

- Figure 4 shows a sketch of the curve C with equation

y = 4 + 12x – 3x^{2} - Figure 5 shows a sketch of the curve with equation y = f(x) where
- A curve has equation y = f(x), x > 0

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