#Question regarding sin and cos and finding a unit vector of an angle

7 messages · Page 1 of 1 (latest)

true spade
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You're taking the reference angle

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Reference angles are used in trig in general

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Once application is to find the value of a trig function, you can find the value for the reference angle, and then base the sign of the final result on the quadrant

uncut pond
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sin and cos can take in any angle

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e.g. sin(4096 degrees)

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It's not just between 0 and 180