Sequences & Series
GP; product of terms
Grade Class 12
Question:
The third term of a G.P. is 2. Then the product of the first five terms is
$2^3$
$2^4$
$2^5$
None of these
Step-by-Step Solution
Key Concept: In a GP with first term $a$ and ratio $r$, product of first five terms $=a^5r^{10}=(ar^2)^5=T_3^5$.
Product $=2^5=32$.
Correct Answer: 3