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3.2 Algebra and Functions (A-level only)

3.2 Algebra and Functions (A-level only)

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Question 22

The efficiency coefficient E(v)E(v)E(v) of a turbine is modelled by

E(v)=20+8v−5v−2vv4−v\displaystyle E(v)=\frac{20+8v-5\sqrt{v}-2v\sqrt{v}}{4-\sqrt{v}}E(v)=4−v​20+8v−5v​−2vv​​,

where v>0 v>0\,v>0 and v≠16v\ne16v=16.

Simplify E(v)E(v)E(v) completely.

[4]
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3.2 Algebra and Functions (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.2 Algebra and Functions (A-level only)

216 exam-style questions on WJEC A Level Maths 3.2 Algebra and Functions (A-level only), covering 3.2.1 Algebra and Functions (A-level only), 3.2.2 Algebra and Functions (A-level only), 3.2.3 Algebra and Functions (A-level only), 3.2.4 Algebra and Functions (A-level only), 3.2.5 Algebra and Functions (A-level only), 3.2.6 Algebra and Functions (A-level only), and 3.2 Algebra and Functions (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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