Question
Mathematics Question on Sequence and series
If the third term of a G.P. is 3, then the product of its first 5 terms is
A
15
B
81
C
243
D
Cannot be determined
Answer
243
Explanation
Solution
Given third term of GP is, a=3.
Product of first 5 terms
=ar2×ar×a×ra×r2a
=a5
=(3)5
=243