Teaching HTET TGT Level 2 - 2024 Mock Test Mathematics Sequences and Series Geometric Progressions

Geometric mean of 7, 72, 73, ......., 7n is

1
\({7^{\frac{{{\rm{n}} + 1}}{2}}}\)
2
\({7^{\frac{{\rm{n}}}{2}}}\)
3
\({7^{\frac{{{\rm{n}} - 1}}{2}}}\)
4
None of these
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