If _ i=1 ^ n a _ i =0 , where | a _ i |=1 v i Z , then the value of _ 1 i<j n _ i n a _ i…
Mathematics · JEE Main · NTA Exams — Vector Algebra
If \(\sum_{i=1}^{n} \overrightarrow{\mathbf{a}}_{i}=0\), where \(\left|\overrightarrow{\mathbf{a}}_{i}\right|=1 \mathbf{v} i \in Z\), then the value of \(\sum_{1 \leq i
- \(-\frac{n}{2}\)
- \(-\pi\)
- \(\frac{n}{2}\)
- \(\text { n }\)
Answer
(A) - n 2
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