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Let v = (-2,6) and w = (12,4). Which of the following is true? A. v and w are perpendicular. B. Th...
4 months ago
Q:
Let v = (-2,6) and w = (12,4). Which of the following is true? A. v and w are perpendicular. B. The x-component of v is 6. C. VxW= 48 D. w = -4(-3,-1)
Accepted Solution
A:
A is the correct answer because the dot product of v and w is (-2•12)+(4•6), which in turn is equivalent to -24+24, or 0.