if the first term of gp be 5 and common ratio be -5 then which term is 3125
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1st term a = 5
Common ratio = - 5
n =?
The term is 3125
ar^(n-1) = 3125
5 × - 5^(n - 1) = 3125
-5^(n - 1) = 3125/5
= 625
-5^(n - 1) = (-5)⁴
n - 1 = 4
n = 4 + 1
= 5
Therefore, 3125 is the 5th term of G.P.
Hope this helps u Mr. Krish...
Please mark me as the brainliest.....
Common ratio = - 5
n =?
The term is 3125
ar^(n-1) = 3125
5 × - 5^(n - 1) = 3125
-5^(n - 1) = 3125/5
= 625
-5^(n - 1) = (-5)⁴
n - 1 = 4
n = 4 + 1
= 5
Therefore, 3125 is the 5th term of G.P.
Hope this helps u Mr. Krish...
Please mark me as the brainliest.....
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