Which of the following numbers is closest to 9? A. 83 B. 82 C. 79 D. 78
2 answers:
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ANSWER
E. 10 and 640
EXPLANATION
The given series is
To find the first term of the series we substitute i=1 to get,
For the last term of the series, we substitute i=4 to obtain,
This implies that,
Therefore the correct answer is E
E. 10 and 640
EXPLANATION
The given series is
To find the first term of the series we substitute i=1 to get,
For the last term of the series, we substitute i=4 to obtain,
This implies that,
Therefore the correct answer is E