1.Find the 10th term of the G.P. 5,25,125,.......also find its nth term.
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a=5
d=25-5=20
a10= a+9d = 5+9(20) = 5+180
=185
d=25-5=20
a10= a+9d = 5+9(20) = 5+180
=185
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