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OpenStudy (anonymous):
Find a ⋅ b. a = 6i - 6j, b = 4i + 2j
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zepdrix (zepdrix):
\[\Large\bf\sf a=<6,-6>, \qquad b=<4,~2>\] \[\Large\bf\sf a\cdot b=6(4)+(-6)2\]We multiply the components, then add.
OpenStudy (anonymous):
Awesome thanks.:D
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