Asked by jake

find the angle between vector U=<2,3> and V=<1,-5> answers: 88 degrees, 45 degrees, 135 degrees, or 92 degrees...?
Answered by Reiny
U∘V = |U| |V|cos Ø, where Ø is the angle between
2 - 15 = √13√26cosØ
cosØ = -13/13√2
= -1/√2
Ø = 135°
Answered by Maura
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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