KCET2016MathematicsBinomial Theorem
The 11th term in the expansion of ( (x+ 1 x )¹⁴ ) is
Options
- A( 999 x )
- B( 1001 x )
- C( i )
- D( x 1001 )
Correct answer
B. ( 1001 x )
Step-by-step solution
Given expression, ( (x+ 1 x )¹⁴ ) We know that nth term is given by [ array l T_ r+1 = n r a^ n-r b^ r So, T₁₁= 14 10 ( ⁴ ) ( 1 )¹⁰ = 14 10 ( ⁴ ) ( 1 ⁵ ) = 14 10 = 1001 array ]