Question

The middle term of the expansion of (x ^2 + 1/ x^ 2 ) 8 is

Answer 1

Step-by-step explanation:

if the power is n then total term is (n+1) here power is 8 so total term = (8+1)=9

middle term will be (9+1)/2

10/2=5term

8c4×{(x²)⁵×(1/x²)³

{8!/(8-4)!×4!}×{x¹⁰×1/x⁶}

8!/4!×4!×{x⁴}

(5×6×7×8)/24×(x⁴)

70x⁴

hence middle term is 70x⁴

#666