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10 questions from this quiz
A scalar
∣a∣∣b∣cosθ|\mathbf{a}||\mathbf{b}|\cos\theta∣a∣∣b∣cosθ
000
They are perpendicular
Distributive property
Yes, a⋅b=b⋅a\mathbf{a} \cdot \mathbf{b} = \mathbf{b} \cdot \mathbf{a}a⋅b=b⋅a
cosθ=a⋅b∣a∣∣b∣\cos\theta = \frac{\mathbf{a} \cdot \mathbf{b}}{|\mathbf{a}||\mathbf{b}|}cosθ=∣a∣∣b∣a⋅b
Subtract the acute angle from 180°
333
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