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Sticky Note
The period of Cos (3x+5) is?
  1. 2π/3
  2. π/3
  3. π/3
  4. None of these
Explanation
The standard period of cos(x) is 2π.
For cos(3x + 5), the period is given by:
Period = 2π / |coefficient of x|
= 2π / 3

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