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eben

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there are two sine rules for finding the direction of a resultant vector;one for the sides and one for the angle;

I tested both formulas and they all worked well and gave me equal answers, does that mean I can use them interchangeably,the rules are:

a/sinA = b/sinB=c/sinC(for finding the sides) and

sinA/a=sinB/b=sinC/c(for finding the angles)