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Describe the oscillators and basic wave forms -- sine, triangle, square, and sawtooth.

What is the question?Which of the following is NOT a type of basic oscillators?
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OK	Value	Feedback
	Star	Yes, star is not a type of basic oscillator.
	Sine	Sine is a basic type of oscillator.
	Square	Square is a basic type of oscillator.
	Sawtooth	Sawtooth is a basic type of oscillator.

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