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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. | |