Derivatives of the Trigonometric Functions: Quiz

Problem 2

Find the derivative of

y = (sin(x) cos(2x))3

  1. 3(cos(x) sin(2x))2
  2. –3(sin(x) cos(2x))2(cos(x) sin(2x))
  3. 3(sin(x) cos(2x))2(–2 sin(x)sin(2x) + cos(x)cos(2x))
  4. 3(cos(x) sin(2x))2(sin(3x) + cos(3x))

Answers, problem 2

  1. 3(sin(x) cos(2x))2(–2 sin(x)sin(2x) + cos(x)cos(2x))

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