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Mathematics, 09.11.2020 20:10 judyd452

Let a=(-7,3) and b=(-2,-12), and c=a+b. What is the magnitude and direction angle of c? A. |c|=18; theta=135°
B. |c|=18; theta=225°
C. |c|=9sqrt2; theta=135°
D. |c|=9sqrt2; theta=225°

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Let a=(-7,3) and b=(-2,-12), and c=a+b. What is the magnitude and direction angle of c? A. |c|=18;...
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