Originally Posted by

**cottontails** "Suppose **a** and **b** are vectors such that |**a**| = 3, **b** = 2 and the angle between **a** and **b** is (theta) = pi/3. Evaluate (**a** + **b**) . (**a** and **b**)." (Note: The '.' implying dot-product).

I am unsure with how to approach this question, considering there is also an angle involved. I am moreover unsure with how to evaluate the equation, since there are no numbers within it and it is with using the dot product. I did at first try expanding out the equation but then realised that was wrong. I really do not know what the angle implies in this question, either.