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OpenStudy (anonymous):
Find the angle between the given vectors to the nearest tenth of a degree. u = <6, -1>, v = <7, -4>
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OpenStudy (cwrw238):
the formula for this is cos x = dot product ---------- product of magnitudes
OpenStudy (cwrw238):
dot product 6*7 + -1*-4 = 46 magnitudes = sqrt(6^2 + 1^2) and (7^2 + 4^2) can you continue ?
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