From Förberedande kurs i matematik 1

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-	{{NAVCONTENT_START}}	+	On the unit circle, the angle <math>3\pi/2</math> corresponds to the point (0,-1), and the angle in the interval from <math>0</math> to <math>\pi</math> which has the same cosine value as <math>3\pi/2</math>, i.e. the ''x''-coordinate <math>0</math>, is the angle <math>v = \pi/2\,</math>.
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-	<center> [[Image:4_3_2a.gif]] </center>	+	[[Image:4_3_2_a.gif||center]]
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Current revision

On the unit circle, the angle \displaystyle 3\pi/2 corresponds to the point (0,-1), and the angle in the interval from \displaystyle 0 to \displaystyle \pi which has the same cosine value as \displaystyle 3\pi/2, i.e. the x-coordinate \displaystyle 0, is the angle \displaystyle v = \pi/2\,.