Which of the following are periodic functions?
A) $2 \cos (\pi t+6)$
B) $-2 \sin t+t^{2}$
C) $2 \sin (\cos (t))$
D) $2 \cos (t+\pi)$
E) $2 \cos (-t)$

Name: Which of the following are periodic functions? A) $2 \cos (\pi t+6)$ B) $-2 \sin t+t^{2}$ C) $2 \sin (\cos (t))$ D) $2 \cos (t+\pi)$ E) $2 \cos (-t)$
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The Answer of Which of the following are periodic functions?
A) $2 \cos (\pi t+6)$
B) $-2 \sin t+t^{2}$
C) $2 \sin (\cos (t))$
D) $2 \cos (t+\pi)$
E) $2 \cos (-t)$

Which of the Following Are Periodic Functions? A) 2cos⁡(πt+6)2 \cos (\pi t+6)2cos(πt+6)

Which of the Following Are Periodic Functions?
A) $2 \cos (\pi t+6)$