Vector direction:

$\overline{){\mathbf{tan}}{\mathbf{\theta}}{\mathbf{=}}\frac{\mathbf{y}}{\mathbf{x}}}$

**C** = **A** + **B** = (-3 + 8) **î** + (5 + 2) **ĵ** = 5 **î** + 7 **ĵ**

θ_{C} = tan^{-1} (7/5) = 54.5°

You are given two vectors: **A** = −3.00 **î **+ 5.00 **ĵ** and **B** = 8.00 **î **+ 2.00 **ĵ**. Let the counterclockwise angles be positive.

Vector **C** is the sum of **A** and **B** , so **C** = **A + B**. What angle θ_{C}, where 0° ≤ θ_{C} < 360°, does **C** make with the +x-axis?

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