Binomial Theorem And Its Simple Applications Question 132
Question: The sum of the series $ \frac{2}{3}+\frac{8}{9}+\frac{26}{27}+\frac{80}{81}+….. $ to n terms is
Options:
A) $ n-\frac{1}{2}(1-{3^{-n}}) $
B) $ n-\frac{1}{2}({3^{-n}}-1) $
C) $ n-\frac{1}{2}(3^{n}-1) $
D) $ n+\frac{1}{2}(3^{n}-1) $
Show Answer
Answer:
Correct Answer: A
Solution:
- [a] Assigning values to n, we get the answer.
BETA
