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CBSE Class 12 Math 2023 Outside Delhi Set 2 Solved Paper

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Question : 3 of 12
Marks: +1, -0
If a×b=3\left|\vec{a}\times\vec{b}\right|=\sqrt{3} and ab=3\vec{a}\cdot\vec{b}=-3, then angle between a\vec{a} and b\vec{b} is:
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