apmetdrmozw3ng apmetdrmozw3ng

27-07-2018
Mathematics

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I need explanation on sine rule for 3rd quadrant

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sqdancefan sqdancefan

27-07-2018

Consider the unit circle. The sine of an angle is the y-value of the location of the terminal ray where it intersects the unit circle. In the third and fourth quadrants, the sine is negative, because all y-values are negative there.

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