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Lösung 4.3:3e

Aus Online Mathematik Brückenkurs 1

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Version vom 15:03, 22. Okt. 2008

The angle 2+v makes the same angle with the positive y-axis as the angle v makes with the positive x-axis, and hence we see that the x-coordinate for 2+v is equal to the y-coordinate for v, but with a change of sign, i.e.

cos2+v=−sinv=−a. 
Angle v Angle π/2 + v
Von „http://wiki.sommarmatte.se/wikis/2009/bridgecourse1-TU-Berlin/index.php/L%C3%B6sung_4.3:3e“