Day 35: CBSE Class 12 Maths

1. A.
   $\vec{a} \cdot \vec{b} \le |\vec{a}|\,|\vec{b}|$
2. B.
   $|\vec{a} + \vec{b}| \ge |\vec{a}| + |\vec{b}|$
3. C.
   $|\vec{a} - \vec{b}| = |\vec{a}| - |\vec{b}|$
4. D.
   $|\vec{a} \times \vec{b}| \ge |\vec{a}|\,|\vec{b}|$

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1. A.
   $\dfrac{3}{2}$ sq units
2. B.
   $\dfrac{2}{3}$ sq units
3. C.
   3 sq units
4. D.
   $\dfrac{4}{3}$ sq units

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1. A.
   $\dfrac{1}{5}\log 6$
2. B.
   $\dfrac{1}{5}\log 5$
3. C.
   $\dfrac{1}{2}\log 6$
4. D.
   $\dfrac{1}{2}\log 5$

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