(3) if the first term of a G.P is 5 and
common ratio is -5 then which term
is 3125 ?
o
5
6
O
7
8
(3) if the first term of a G.P is 5 and
1 thought on “(3) if the first term of a G.P is 5 and<br />common ratio is -5 then which term<br />is 3125 ?<br />o<br />5<br />6<br />O<br />7<”
Leave a Comment
You must be logged in to post a comment.
Answer:
5 is correct answer for this question
Step-by-step explanation:
a=5 and r=-5
for gp
an=arn-¹
a.t.q
=5×-5^n-1=3125
-5^n-1=3125/5
-5^n-1=625
-5^n/5=625
-5^n=5⁴×5
-5^n=5⁵
so
bases are same so
exponent are same
so n=5 ans