NDA2022MathematicsBinomial TheoremActual
Consider the following statements in respect of the expansion of (x+y)¹⁰ : 1. Among all the coefficients of the terms, the coefficient of the 6th term has the highest value 2. The coefficient of the 3 rd term is equal to coefficient of the 9th term Which of the above statements is/are correct?
Options
- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Correct answer
C. Both 1 and 2
Step-by-step solution
Middle term of (x+y)¹⁰ is ( 10+2 2 )^ th term =6^ th term We know that coefficient of middle term is highest value. So, statement 1 is correct Since total number of term =10+1=11 Coefficient of 3rd term = coefficient of (11-3+1)^ th term = Coefficient of 9^ th term So, statement 2 is correct