MCQ
$7, 7^2, 7^3, ….7^n $ નો સમગુણોત્તર મધ્યક ..... છે.
- A${7^{\frac{{n + 1}}{2}}}$
- B${7^{\frac{n}{2}}}$
- C${7^{\frac{{n - 1}}{2}}}$
- D$7^n$
$= (7^{1 + 2 + 3 + .... + n})^\frac{1}{n}$
$= {\left( {{7^{\frac{{n(n + 1)}}{2}}}} \right)^{\frac{1}{n}}} $
$= {7^{\frac{{n + 1}}{2}}}$
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