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Nigel Forbes
Mathematics
16 March, 07:45
Find the Dot Product if u=8i-7j and v=3i-4j?
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1
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Jayson Huffman
16 March, 07:49
0
52
Step-by-step explanation:
If u = (a1i+b1j) = (a1, b1) and v = (a2i+b2j) = (a2, b2), then the dot (scalar) product is:
u. v = (a1, b1). (a2, b2)
a1b1+a2b2
u. v = (8,-7). (3,-4)
(8) (3) + (-7) (-4)
24+28=52
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