alleryThe values of sin x and cos x repeat after an interval of:
AHalf pi
BFour pi
CTwo pi
DOne pi
Answer & Solution
Correct answer: C. Two pi
1. One full turn brings the point P back to where it started.
2. The coordinates of P are then the same again.
3. So the values repeat after two pi.
_Source: syllabus Mathematics, Chapter 3, Trigonometric Functions._
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