Problem-Solving-With-Vectors Edexcel Higher

Vector problem-solving

What are vector proofs?

• Vectors can be used to prove things that are true in geometrical diagrams

  • Vector proofs can be used to find additional information that can help us to solve problems

How do I know if two vectors are parallel?

• Two vectors are parallel if one is a scalar multiple of the other

  • This means if b is parallel to a, then b = ka

    •  where k is a constant number (scalar)

• For example,  and  

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