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Having some trouble with this question,

A complex wave is described by equation, y=100 sin ωt+30 sin(3ωt-∏/2)

A) on the same axis sketch and label,

1)one cycle of the fundamental waveform

2)the third harmonic

3) the complex waveform(y)

ω=2∏f

T=2∏/ω

Not sure where to start.

To sketch graph I need to find time, to get time I need frequency. Not sure how to find frequency from 100 sin ωt

as

Do I just treat ω as 2∏?

A complex wave is described by equation, y=100 sin ωt+30 sin(3ωt-∏/2)

A) on the same axis sketch and label,

1)one cycle of the fundamental waveform

2)the third harmonic

3) the complex waveform(y)

ω=2∏f

T=2∏/ω

Not sure where to start.

To sketch graph I need to find time, to get time I need frequency. Not sure how to find frequency from 100 sin ωt

as

Do I just treat ω as 2∏?

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