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Vectors and matrices — Question 7

QCAA 2021, Paper 2 · 1 mark

Q7 · 2021 · Technology-activeSimple familiar1 mark

QUESTION 7

The altitude angle of OA→\overrightarrow{OA} is represented as φ\varphi.
Given the coordinates of A are (3,4,6)(3,4,6), the altitude angle of OA→\overrightarrow{OA} in radians is
Three-dimensional diagram defining the altitude angle phi of vector OA.
(A)
0.930.93
(B)
0.880.88
(C)
0.690.69
(D)
0.660.66
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