Find a ⋅ b. a = 9i + 5j, b = 4i + 3j

2 answers:

aksik [14]3 years ago

4 0

Answer:

Step-by-step explanation:

<13, 8>

<36, 15>

-21

N76 [4]3 years ago

3 0

9i+5j x 4i+3j
Factor
=9i+20ij+3j
= (9+20j)i+3j
=3j+(9+20j)i =answer

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Vlad [161]

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Lisa [10]

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andrey2020 [161]

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