What is the maximum value of ?

Answer and explanation

Correct answer: D. 5

  1. Step 1: Write as with .
  2. Step 2: The maximum of a sine wave is its amplitude, so 5.
Answer
5.
Why not the others: 7: the coefficients were added. 12: the coefficients were multiplied. 1: the maximum of one sine function was used.

Practise more Differentiation and Integration.

Free questions with an explanation for every one, and full timed Scottish Highers mock tests.