Solution 4.3:2a
From Förberedande kurs i matematik 1
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- | + | 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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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\,.