Geometric mean of 4 and 12?
回答 (3)
Let m be the geometric mean of 4 and 12.
Common ratio:
m/4 = 12/m
m² = 48
m = √48 or m = -√48
m = 4√3 or m = -4√3
The geometric mean is 4√3 or -4√3.
The geometric mean of a and b is √(ab)
√(4 * 12)
= √48
= √16 * √3
= 4√3
Answer:
4√3
The geometric mean of 4 and 12:
4 sqrt(3) ≈ 6.9282
收錄日期: 2021-04-24 01:07:38
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