- #1
thoradicus
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http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20%289709%29/9709_w09_qp_31.pdf
6i
r=a+λb
first i find AB which is (2,2,-2)
the equation if line is then (1,0,-1)+λ(2,2,-2)
i made it so that λ is 0.5, which then OM is (2,1,-2), as its the mid point.
i found AC to be (3,-3,3)
the equation of AC is (1,0,-1)+λ(3,-3,3)
which then i made lambda to be 1/3...but is this the right working? i did that and i can't get the awnser.
Homework Statement
6i
Homework Equations
r=a+λb
The Attempt at a Solution
first i find AB which is (2,2,-2)
the equation if line is then (1,0,-1)+λ(2,2,-2)
i made it so that λ is 0.5, which then OM is (2,1,-2), as its the mid point.
i found AC to be (3,-3,3)
the equation of AC is (1,0,-1)+λ(3,-3,3)
which then i made lambda to be 1/3...but is this the right working? i did that and i can't get the awnser.