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4.11 Vectors (A-level only)

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Question 56

In the triangle $A B C$ ,

$AB⃗=6i+2j−k\vec{AB} = 6\mathbf{i} + 2\mathbf{j} - \mathbf{k}$ and $AC⃗=8i−5j+4k\vec{AC} = 8\mathbf{i} - 5\mathbf{j} + 4\mathbf{k}$

Find the vector $BC⃗\vec{BC}$ .

[3]

Find the length of $A B$ , giving your answer in exact form.

[2]

Markscheme

4.11 Vectors (A-level only) Questions

A Level
Maths
4.11 Vectors (A-level only)

133 exam-style questions on WJEC A Level Maths 4.11 Vectors (A-level only), covering 4.11.1 Vectors (A-level only) and 4.11.2 Vectors (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

4.11 Vectors (A-level only)

Question bank

4.11 Vectors (A-level only)

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Question 56

In the triangle $A B C$ ,

$AB⃗=6i+2j−k\vec{AB} = 6\mathbf{i} + 2\mathbf{j} - \mathbf{k}$ and $AC⃗=8i−5j+4k\vec{AC} = 8\mathbf{i} - 5\mathbf{j} + 4\mathbf{k}$

Find the vector $BC⃗\vec{BC}$ .

[3]

Find the length of $A B$ , giving your answer in exact form.

[2]

Markscheme

4.11 Vectors (A-level only) Questions

A Level
Maths
4.11 Vectors (A-level only)