AP EAMCET · Maths · Vector Algebra
If \(\mathbf{a}, \mathbf{b}\) and \(\mathbf{c}\) are three vectors such that \(|\mathbf{a}|=|\mathbf{b}|=2, \mathbf{a} \cdot \mathbf{b}=2\) and \(\mathbf{a}+\mathbf{b}+\mathbf{c}=0\), then \(|\mathbf{c}|\) is equal to
- A 2
- B \(2 \sqrt{3}\)
- C \(\sqrt{3}\)
- D 3
Answer & Solution
Correct Answer
(B) \(2 \sqrt{3}\)
Step-by-step Solution
Detailed explanation
Given, |a |= |b|= 2, a ×b = 2 and a + b + c = 0, then|c|= ? a + b + c = 0 … (i)…
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