Period of the function cos{(x + 3)−[x + 3]}, where [x] denotes the integral part of x is
Answer & explanation
Correct answer: option 1
x − [x] is a periodic function with period 1.
∴ (x + 3)−[x + 3] is a periodic function with period 1.
∴ cos{(x + 3)−[x + 3]} is a periodic function with period 1.