If \vec{A} = 5i + 2j + 3k and \vec{B} = 4i - 5j - 7k, then the angle \theta in degree between two vectors is: A) 98.8528 E) 122.0114 B) 57.9885 F) 81.1471 C) 29.2985 G) 100.8416 D) 79.1583 H) 150.7014
Added by Harry M.
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Step 1
First, we need to find the dot product of the two vectors A and B: A · B = (5i + 2j + 3k) · (4i - 5j - 7k) = 5*4 + 2*(-5) + 3*(-7) = 20 - 10 - 21 = -11 Show more…
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