Mark against the correct answer in each of the following:

Question:

Mark $(\sqrt{)}$ against the correct answer in each of the following:

If $|\overrightarrow{\mathrm{a}}|=\sqrt{26},|\overrightarrow{\mathrm{b}}|=7$ and $|\vec{a} \times \vec{b}|=35$ thenĀ $\vec{a} \cdot \vec{b}=?$

A. 5

B. 7

C. 13

D. 12

Solution:

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