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OpenStudy (anonymous):
compute the following linear combinations (79.4,58.1)+3(-0.8,6.3)
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OpenStudy (saifoo.khan):
let vector a = (79.4,58.1) = 79.4+58.1j and vector b = 3(-0.8+6.3j) = 2.4+18.9j (vector a) + (vector b) = 81.8+77j
OpenStudy (anonymous):
so the answer is (81.8, 77j) ??
OpenStudy (saifoo.khan):
right.
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