1.

Find the angle between the two vectors \(\vec{a} \,and \, \vec{b}\) with magnitude 2 and \(\sqrt{3}\) respectively and \(\vec{a.} \, \vec{b}\)=4.

A. \(\frac{π}{3}\)
B. \(\frac{π}{6}\)
C. \(cos^{-1}⁡\frac{\sqrt{2}}{3}\)
D. \(cos^{-1}⁡\frac{2}{\sqrt{3}}\)
Answer» C.


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