3 years ago

What's the dot product of u = <-9, 4> and v = <1,3>? Thanks!

Mathematics

1 answer:

Leno4ka [110]3 years ago

8 0

$\langle-9,4\rangle\cdot\langle1,3\rangle=(-9)(1)+(4)(3)=-9-12=-21$

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