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R=√(6²+9²+2*6*9*cos(0))
R =15
R=√(6²+9²+12*9cos(60))
R=13.12
R=√(6²+9²+12*9cos(90))
R=10.82
R=√(6²+9²+12*9cos150)
R=4.84
R=√(6²+9²+12*9cos180)
R=3
su direccion con respecto al mas pequeño seria 0° direccion del eje de la ordenada o eje x
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