Math
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posted by Reiny
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Math
Find the angle Q between the two vectors. u = 10i + 40j v = 3j+8k cos / sqrt1700 sqrt73 cos(120/sqrt1700 sqrt73) = .9072885394 arc cos (.9072885394) = 24.86 degrees. Is this correct?
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The problem concern the position vectors r1=2.43mi4.74mj and r2=3.02mi+0.85mj. Find the angle between the two vectors. Hint: Find the angle each makes with the +xaxis.
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