CAIE A-Level Mathematics AS 2.2.1 Log Laws Questions

Practise statistical sampling methods within the AS mathematics syllabus.

Exam points

use vector notation and operations
solve geometric problems with vectors
interpret vector relationships

[Maximum number: 3]

$5 \quad$ (a) Given that $2 \ln (x+1)+\ln x=\ln (x+9)$ , show that $x=\sqrt{\frac{9}{x+2}}$ .

Use the power law correctly
*M1
Use correct process to obtain equation with no logarithms
Confirm $x=\sqrt{\frac{9}{x+2}}$
AG;
condone absence of justification for choice of positive root.

All question bank results loaded

CAIE A-Level Mathematics AS 2.2.1 Log Laws Questions question 1