Asked by Eaden
Vector A is described as having magnitude -7 and angle 30degress. Which is an equivaent statement of magnitude and angle of vector A? (Note: All angles are measured counterclockwise from x-axis.)
Answers
Answered by
Henry
A = -7[30o] = -7*cos30 + i(-7)*sin30
A = -6.06 - 3.5i. Q3.
tanB = Y/X = -3.5/-6.06 = 0.57756
Br = 30o = Reference angle.
B = 30 + 180 = 210o.A =
A = -6.06/cos210 = 7[210o].
A = -6.06 - 3.5i. Q3.
tanB = Y/X = -3.5/-6.06 = 0.57756
Br = 30o = Reference angle.
B = 30 + 180 = 210o.A =
A = -6.06/cos210 = 7[210o].
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