Question

Find the magnitude of exp(jwt). Find the boundness of sin(t) and cos(t).

(a) 1, [-1,2], [-1,2]

(b) 0.5, [-1,1], [-1,1]

(c) 1, [-1,1], [-1,2]

(d) 1, [-1,1], [-1,1]

This question was addressed to me during an internship interview.

Enquiry is from Useful Signals topic in division Signals and Systems Basics of Signals and Systems

Answer 1

Right option is (d) 1, [-1,1], [-1,1]

The explanation is: The sin(t)and cos(t) can be found using Euler’s rule.