Trigonometry lesson 11 - The four quadrants

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Australia Magic Monk
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In this lesson we discuss the differences in the sign and values of sine, cosine and tangent theta in the four quadrants. Quadrant 1 is from 0 to 90 degrees, quadrant 2 is between 90 to 180, quadrant 3 is between 180 to 270 degrees and quadrant 4 is between 270 to 360 degrees. Remember 360 degrees is the same as 0 degrees (a whole revolution brings us back to the original point).



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Tags:
trigonmetric ratio tutorial
period functions tutorial
trigonometry tutorial
unit circle tutorial
unit circle quadrants