Find the geometric mean?

1). find the geometric mean between 5 and 12.


2). Find the geometric mean between 1 and 7.


3). Find the geometric mean between 8 and 25.


4). Find the geometric mean between 4 and 100.

Find the geometric mean?
Add the numbers together and divide by 2





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so number 1 would be 8.5





seriously Hun, do your own homework
Reply:a, m, b forms a geometric sequence


then


m/a = b/m


m² = ab


m = ±√(ab)


1.


m = ±√5(12)


m = ±√5*3*4


m = ±2√15





2.


m = ±√1*7


m = ±√7





3.


m = ±√8(25)


m = ±2(5)√2


m = ±10√2





4.


m = ±√4(100)


m = ±2(10)


m = ±20