MCQ
$\sqrt { - 2} \,\sqrt { - 3} = $
- A$\sqrt 6 $
- ✓$ - \sqrt 6 $
- C$i\sqrt 6 $
- Dએકપણ નહીં.
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વિધાન $1 :$ $2x_1,2x_2,.......,2x_n$ નું વિચ૨ણ $4s^2$ છે.
વિધાન $2 :$ $2x_1,2x_2,.......,2x_n$ નો મઘ્યક $4\overline{x}$ છે.