concider a vector F=4i cap-3j cap another vector that is perpendicular to F is
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A vector is perpendicular if the dot product is 0
a) (4*4) + (-3*3) = 7 no
b) (4*0) + (-3*6) = -18 no
c) (4*0) + (-3*0) + (7*0) = 0 yes
d) (3*4) + (-3*-4) = 24 no
a) (4*4) + (-3*3) = 7 no
b) (4*0) + (-3*6) = -18 no
c) (4*0) + (-3*0) + (7*0) = 0 yes
d) (3*4) + (-3*-4) = 24 no
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