Given the vectors a ~b the angle between which equals 120° . If | a |=3 | b |=4 then the…
Mathematics · JEE Main · NTA Exams — Three Dimensional Geometry
Given the vectors \(\overrightarrow{\mathrm{a}} \& \overrightarrow{\mathrm{~b}}\) the angle between which equals 120° . If \(|\vec{a}|=3 \&|\vec{b}|=4\) then the length of the vector \(2 \overrightarrow{\mathrm{a}}-\frac{3}{2} \overrightarrow{\mathrm{~b}}\) is
- \(6 \sqrt{3}\)
- \(7 \sqrt{2}\)
- \(4 \sqrt{5}\)
- none
Answer
(A) 6 3
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