One of the diagonals of parallelogram ABCD with \(\vec { a } \) and \(\vec { b } \) are adjacent sides is \(\vec { a } \) + \(\vec { b } \). The other diagonal BD is ………………….
A. \(\vec { a } \) – \(\vec { b } \)
B. \(\vec { a } \) – \(\vec { b } \)
C. \(\vec { a } \) + \(\vec { b } \)
D. \(\frac{\vec{a}+\vec{b}}{2}\)
Answer:B
One of the diagonals of parallelogram ABCD with \(\vec { a } \) and \(\vec { b } \) are adjacent sides is \(\vec { a } \) + \(\vec { b } \). The other diagonal BD is ………………….
A. \(\vec { a } \) – \(\vec { b } \) B. \(\vec { a } \) – \(\vec { b } \) C. \(\vec { a } \) + \(\vec { b } \) D. \(\frac{\vec{a}+\vec{b}}{2}\)