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Using Binomial Theorem, indicate which number is larger (1.1)10000 or 1000.

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Question

Using Binomial Theorem, indicate which number is larger (1.1)10000 or 1000.

Sum
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Solution

By splitting 1.1 and then applying Binomial Theorem, the first few terms of (1.1)10000 can be obtained as

(1.1)10000 = (1 + 0.1)10000

= `1^10000   + 10000C_1  xx  1^9999  (0.1)^1`

= 1 + 10000 x (0.1) + …. = 1001 +…

It is clear that the number (1.1)10000 is greater than 1000.

Hence, (1.1)10000  > 1000

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Chapter 7: Binomial Theorem - EXERCISE 7.1 [Page 133]

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NCERT Mathematics [English] Class 11
Chapter 7 Binomial Theorem
EXERCISE 7.1 | Q 10. | Page 133

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