9709/21

Mathematics 9709/21October/November 2015

Cambridge AS Level · Pure Mathematics 2 · worked solutions for every part, with the mark scheme

7
questions
50
marks
75
minutes

Topics Logarithmic and Exponential Functions · Differentiation · Trigonometry · Numerical Solution of Equations · Integration · Algebra

Q14MLogarithmic and Exponential FunctionsFree sample

Use logarithms to solve the equation

5x+3=7x15^{x+3} = 7^{x-1}

giving the answer correct to 3 significant figures.

The rest of this paper

6 more questions
  • Q2Differentiation5M
  • Q3Trigonometry7M
  • Q4Numerical Solution of Equations · Logarithmic and Exponential Functions7M
  • Q5Integration · Trigonometry7M
  • Q6Algebra9M
  • Q7Differentiation11M
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