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JEE Main Physics: Trigonometric Functions questions with solutions

1 questions with worked solutions.

Questions

Q1. What is the value of sin(15 deg) * cos(15 deg)?

  1. 1/2
  2. 1/3
  3. 1/4
  4. 1/12

Answer: 1/4

By the double-angle formula, sin(15)*cos(15) = (1/2)*sin(30) = (1/2)*(1/2) = 1/4.

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