Suppose That A, B, C, and D Are Four Distinct $\vec{AB}$

question 76

Multiple Choice

Suppose that A, B, C, and D are four distinct points in 3-space.Which of the following must be true? Mark all correct answers.

• A) \(\vec{AB}\)+\(\vec{CD}\)=\(\vec{AD}\)
• B) \[\vec { A B } + \vec { B C } = \vec { A C }\]
• C) \[( \overrightarrow { A \bar { B } } + \overrightarrow { C D } ) + \overrightarrow { B C } = \overrightarrow { A D }\]
• D) \[( \overrightarrow { BC } + \overrightarrow { C D } ) + \overrightarrow { DA } = \overrightarrow { BA }\]