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1.13.5 Vectors to solve problems

1.13.5 Vectors to solve problems

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Question 1

The point A A\,A has the position vector (ab2)\begin{pmatrix} a \\ b \\ 2 \end{pmatrix}​ab2​​ where a a\,a and b b\,b are positive constants, point B B\,B has the position vector (533)\begin{pmatrix} 5 \\ 3 \\ 3 \end{pmatrix}​533​​ and point C C\,C has the position vector (311)\begin{pmatrix} 3 \\ 1 \\ 1 \end{pmatrix}​311​​. ABC ABC\,ABC is an isosceles triangle with AB=ACAB = ACAB=AC.

a.

Show that a+b=6a + b = 6a+b=6

[4]
b.

Given that the area of ABC ABC\,ABC is 363\sqrt{6}36​, find the exact values of a a\,a and bbb.

[6]
Markscheme

1.13.5 Vectors to solve problems Questions

  1. A Level
  2. /Maths
  3. /1.13.5 Vectors to solve problems

67 exam-style questions on AQA A Level Maths 1.13.5 Vectors to solve problems. Each one has a worked solution and a mark scheme showing where the marks go.

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