यदि \(\vec{L}=\left( 5\hat{j}+7\hat{k} \right)\) तथा \(\vec{M}=\left( 2\hat{i}-7\hat{j}+5\hat{k} \right)\) तो, \({\vec{P}}\) तथा \({\vec{Q}}\) का डॉट गुणनफल देता है

1
3 इकाइयां
2
7 इकाइयां
3
5 यूनिट
4
0

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