Trying to find out the maximum value of sine between -720 and 720 degrees. I think it's 0 but I'm not sure why. There's a choice of -1, 0 or 1.
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The maximum value of sine between -720 and 720 is the same as between -360 and 360 and -1440 and 1440 and 360 and 3600. The value of sin oscillates up and down between 1 and -1, so the max value is obviously 1.