SOLUTION: Please help! The voltage through a certain wire is E=30sin(2pi*t-pi). Use an identity to express this in terms of sin(2pi*t) This is Trigonometry, if that makes a difference

SOLUTION: Please help! The voltage through a certain wire is E=30sin(2pit-pi). Use an identity to express this in terms of sin(2pit) This is Trigonometry, if that makes a difference

Question 865356: Please help!
The voltage through a certain wire is E=30sin(2pi*t-pi). Use an identity to express this in terms of sin(2pi*t)
This is Trigonometry, if that makes a difference or not.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Since sin(x) = -sin(x-180)
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The voltage through a certain wire is E=30sin(2pi*t-pi). Use an identity to express this in terms of sin(2pi*t)
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30sin(2pi(t)-pi) = -30sin(2pi(t))
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Cheers,
Stan H.
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