Solving two dimensional vector problems
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- Use the law of sines to solve triangles
- Use the law of cosines to solve triangles
- Solve a vector word problem using the laws of sines and cosines
To get to school, Pauline leaves her house and walks due east 1.40 km, then takes a shortcut by walking 0.650 km [35° S of E] through a park. Find her displacement from home to school.
- Solve a difficult vector triangle using geometry
Solve the equation .