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If sin theta=1/2, which could not be the value of theta? A. 30 degrees B. 210 degrees C. 150 degrees D. 390 degrees
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*Waits for Batman to say something so I can give him a medal for smartness*
You can just punch each of the solution given into a calculator and see if it = 0.5.
But from what I remember it's 210 degrees because on the unit circle that would be negative.
And I'm definitely not going over the unit circle here lol.
Find the period, range, and amplitude of the cosine function. y=-4cos 8x
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