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in the given geometric sequence 15 25 125 625 what is the geometric mean between 5 and 125​

Sagot :

BLAKELISAJENGO

a1= 5

a5=125

n=13

formula

an = a1, r ^n-1

a125 = a5,( r ) ^13 - 1

125/5 = 5r ^12 /5

use 4root

⁴√25 = ⁴√r ^12

6= r

hope it helps

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