Discussions for the Core part of the syllabus. Algebra, Functions and equations, Circular functions and trigonometry, Vectors, Statistics and probability, Calculus. IB Maths HL Revision Notes
by elizabeth » Wed Mar 13, 2013 8:39 pm
IB Mathematics HL – Vectors, Scalar Product, perpendicular vectors How can we find the value of the parameter c for which the vectors

and

are perpendicular?
Thanks
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elizabeth
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by miranda » Wed Mar 13, 2013 9:08 pm
IB Mathematics HL – Vectors, dot Product, perpendicular vectorsWe know that two vectors are perpendicular if and only their dot product equals zero.
Therefore
 + (2c \cdot (-2)) + (4 \cdot 5) =3c- 4c+20=0)

Hope these help!

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miranda
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by elizabeth » Sun Mar 17, 2013 5:11 pm
Thanks miranda!!
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elizabeth
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