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Posted by on Thursday, May 17, 2012 at 7:13pm.

find the angle between vector U=<2,3> and V=<1,-5> answers: 88 degrees, 45 degrees, 135 degrees, or 92 degrees...?

  • trig - , Thursday, May 17, 2012 at 8:07pm

    U∘V = |U| |V|cos Ø, where Ø is the angle between
    2 - 15 = √13√26cosØ
    cosØ = -13/13√2
    = -1/√2
    Ø = 135°

  • trig - , Thursday, April 11, 2013 at 3:06pm

    A point on the terminal side of an angle theta is given. Find the exact value of the six trigonometric functions of theta:
    (2,-3)

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