the third term of a Geometric progression is 4 find the product of it's first 5 terms.
Answers
Answered by
0
Answer:
Let a be the first term of a G.P. and r be the common ratio.
∴ First five terms of a G.P. are a,ar, ar
2
,ar
3
,ar
4
∴ Third terms =ar
2
=4
Product of first five terms = (a
5
)(r
1+2+3+4
)=(a
5
)(r
10
)
⇒(ar
2
)
5
=4
5
Similar questions