Maharashtra State BoardHSC Science (General) 11th
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Select the correct answer from the given alternatives. The coefficient of the 8th term in the expansion of (1 + x)10 is: - Mathematics and Statistics

MCQ

Select the correct answer from the given alternatives.

The coefficient of the 8th term in the expansion of (1 + x)10 is:

Options

  • 7

  • 120

  • 10C8 

  • 210

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Solution

120

Explanation;

r = 7,

∵ T8 = 10C7 x7 = 10C3 x

∴ coefficient of T8 = 10C3 = 120

Concept: Middle term(s) in the expansion of (a + b)n
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APPEARS IN

Balbharati Mathematics and Statistics 2 (Arts and Science) 11th Standard Maharashtra State Board
Chapter 4 Methods of Induction and Binomial Theorem
Miscellaneous Exercise 4 | Q I. (9) | Page 85
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