Three vectors a b and c each have a magnitude of 50 m

Three vectors a, b, and c each have a magnitude of 50 m and lie in an xy plane.Their directions relative to the positive direction of the x axis are 30°, 195°, and 315°, respectively.What are (a) the magnitude and (b) the angle of the vector a + b + c, and (c) the magnitude and (d) the angle of a - b + c? What are the (e) magnitude and (f) angle of a fourth vector such that (a + b) - (c + d) = 0?

[fordons]

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