Find the magnitude of the vector rrarr that is the sum of

Question

1) Find the magnitude of the vector R^→ that is the sum of the three vectors A^→, B^→, and in the figure

2) Find the direction of the vector R^→ . Take an angle positive counterclockwise from the + x-axis.

3) Find the magnitude of the vector S^{→ = C→ - A→ - B→}

4) Find the direction of the vector S^{→ = C→ - A→ - B→} . Take an angle positive counterclockwise from the + x-axis.