# Chapter 9 - Polar Coordinates; Vectors - 9.4 Vectors - 9.4 Assess Your Understanding - Page 606: 21

False.

#### Work Step by Step

We can see from the figure that: $D+(-E)+F+C=0$, hence $D+(-E)+F=-C$, whereas the statement says $D+(-E)+F=C$, which is a contradiction, hence the statement is false.

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