Svar 2.2:2

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(Ny sida: '''R'''<math>=[(300\cos50^\circ –400\cos80^\circ )e_x+(300\sin50^\circ +400\sin80^\circ )e_y]N= [(192,84–69,46)e_x+(229,81+393,92)e_y)]N=(123,38e_x+623,73e_y)N</math>)
m
Rad 1: Rad 1:
'''R'''<math>=[(300\cos50^\circ –400\cos80^\circ )e_x+(300\sin50^\circ +400\sin80^\circ )e_y]N=
'''R'''<math>=[(300\cos50^\circ –400\cos80^\circ )e_x+(300\sin50^\circ +400\sin80^\circ )e_y]N=
-
[(192,84–69,46)e_x+(229,81+393,92)e_y)]N=(123,38e_x+623,73e_y)N</math>
+
[(192,84–69,46)e_x+(229,81+393,92)e_y)]N <br\>=(123,38e_x+623,73e_y)N</math>

Versionen från 15 december 2009 kl. 14.07

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