A function is given by f(t) = sin2t + cos 2t. Which of the following is true?
A. $$f$$ has frequency components at 0 and $${1 \over {2\pi }}Hz$$
B. $$f$$ has frequency components at 0 and $${1 \over \pi }Hz$$
C. $$f$$ has frequency components at $${1 \over {2\pi }}$$ and $${1 \over \pi }Hz$$
D. $$f$$ has frequency components at 0, $${1 \over {2\pi }}$$ and $${1 \over \pi }Hz$$
Answer: Option B
This Question Belongs to Electronics And Communications Engineering >> Signal Processing
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