johndoe10101
johndoe10101
26-09-2018
Mathematics
contestada
Find a ⋅ b. a = 8i + 6j, b = 4i + 5j
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27Toucan
27Toucan
26-09-2018
The answer is 62! This is a vector problem, so they’re looking for the dot product. You multiply all the coefficients with i and the ones with j so you’ll end up with 32 and 30. Add those two numbers together and you’ll get your final answer of 62
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