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horsena [70]
3 years ago
7

Find a • b.

Mathematics
1 answer:
melamori03 [73]3 years ago
6 0
That is about coordinates and the dot product
we have a has coordinates (4;8)
and b has coordinates (-2;3)
So we have a.b= 4x(-2)+ 8x3= -8+24=16
The answer is 16
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For this case, the first thing we must do is define variables.
 We have then:
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