Question

don't spam.....

explain each and every step....
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Answer 1

Answer:

i and iii are periodic

ii is non periodic

Explanation:

Answer 2

2 is aperiodic

Explanation:

I'll give the shortcut

When 2 periodic functions are added , the one with the greatest period is the answer

1) Both have period 2pi/w so answer is 2pi/w

3) Sin wt has period 2pi/w

Cos 2wt has half the period of coswt as there is a 2 so period pi/w

sin4wt has period pi/2w

So overall period is 2pi/w

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