Combining Functions
Review question

When does this trig function have its maximum value?
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Ref: R8411
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Question

The greatest value which the function \[f(x)=(3\sin^2(10x+11)-7)^2\] takes, as \(x\) varies over all real values, equals

  1. \(-9\),
  2. \(16\),
  3. \(49\),
  4. \(100\).
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Oxford University Mathematics Aptitude Test, 2007, Q1B

Question reproduced by kind permission of The University of Oxford. The question remains Copyright The University of Oxford, All rights reserved.

 Last updated 12-Dec-15
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