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# then N Must Be Equal To

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## Question

### Solution

Correct option is

21, 22

For R.H.S. to be a polynomial of degree 10, the last term of R.H.S. must

Thus can happen if n = 21 or 22

#### SIMILAR QUESTIONS

Q1

If the term independent of x in the expansion of  is 405, then kequals

Q2

In the third term in the expansion  is 2, then x equals

Q3

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Q4

the greatest term in absolute value in the expansion of (a +b)50 is

Q5

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Q6

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Q8

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Q9

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Q10

If in the expansion of (21/3 + 3–1/3)n, the ratio of the 7th term from the beginning to the 7th terms from the end is 1: 6, then n is equal to