Svar 2.2:2

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'''R'''<math>=[(300\cos50^\circ –400\cos80^\circ )e_x+(300\sin50^\circ +400\sin80^\circ )e_y]N=
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'''R'''<math>=[(300\cos50^\circ –400\cos80^\circ )e_x+(300\sin50^\circ +400\sin80^\circ )e_y]N</math><br\>
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[(192,84–69,46)e_x+(229,81+393,92)e_y)]N <br\>=(123,38e_x+623,73e_y)N</math>
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<math>=[(192,84–69,46)e_x+(229,81+393,92)e_y)]N=(123,38e_x+623,73e_y)N</math>

Versionen från 15 december 2009 kl. 14.09

R\displaystyle =[(300\cos50^\circ –400\cos80^\circ )e_x+(300\sin50^\circ +400\sin80^\circ )e_y]N
\displaystyle =[(192,84–69,46)e_x+(229,81+393,92)e_y)]N=(123,38e_x+623,73e_y)N