Card 1 of 23
Which formula gives the magnitude of (xy)\begin{pmatrix}x\\y\end{pmatrix}(xy)?
A
∣a∣=x2+y2|\mathbf{a}|=\sqrt{x^2+y^2}∣a∣=x2+y2
B
In the fourth quadrant, the direction is θ=360∘−α\boxed{\theta=360^\circ-\alpha}θ=360∘−α.
C
Third quadrant
D
Fourth quadrant
Card 1 of 23
1.10.3 Magnitude and direction of vectors Flashcards
23 flashcards on OCR A Level Maths 1.10.3 Magnitude and direction of vectors: the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.