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hoyanna69
24.06.2019 •
Mathematics
Find a ⋅ b. a = 8i + 6j, b = 4i + 5j possible answers: < 12, 11> 62 -2 < 32, 30>
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Ответ:
You could rewrite this as double brackets, as you are multiplying together two sets of two terms.
It would then look like:
(8i + 6j)(4i + 5j)
and you can expand by multiplying together all of the terms
8i × 4i = 32i²8i × 5j = 40ij6j × 4i = 24ij6j × 5j = 30j²
To get your final answer, you then just need to add together all of the like terms, and get 32i² + 30j² + 64ij
Please give me the brainliest answer :)
Ответ:
Therefore, G(x) = x^3 - 5.