Chapter 3, Problem 72GP

Two vectors, ${\stackrel{\to }{V}}_1$ and ${\stackrel{\to }{V}}_2$, add to a resultant $\stackrel{\to }{V}={\stackrel{\to }{V}}_1+{\stackrel{\to }{V}}_2$. Describe ${\stackrel{\to }{V}}_1$ and ${\stackrel{\to }{V}}_2$ if (a) V = V₁ + V₂, (b) $V^2=V_1^2+V_2^2$, (c) V_l + V₂ = V₁ – V₂.