Svar 2.2:2
FörberedandeFysik
(Skillnad mellan versioner)
m |
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(En mellanliggande version visas inte.) | |||
Rad 1: | Rad 1: | ||
- | + | <math>\mathbf R=[(300\cos50^\circ –400\cos80^\circ )\mathbf e_x+(300\sin50^\circ +400\sin80^\circ )\mathbf e_y] \,\mathrm N</math><br\> | |
- | [(192,84–69,46)e_x+(229,81+393,92)e_y)] | + | <math>=[(192,84–69,46)\mathbf e_x+(229,81+393,92)\mathbf e_y)] \,\mathrm N=(123,38 \mathbf e_x+623,73 \mathbf e_y) \,\mathrm N</math> |
Nuvarande version
\displaystyle \mathbf R=[(300\cos50^\circ –400\cos80^\circ )\mathbf e_x+(300\sin50^\circ +400\sin80^\circ )\mathbf e_y] \,\mathrm N
\displaystyle =[(192,84–69,46)\mathbf e_x+(229,81+393,92)\mathbf e_y)] \,\mathrm N=(123,38 \mathbf e_x+623,73 \mathbf e_y) \,\mathrm N