(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