If a_r is the coefficient of x^ 10-r in the Binomial expansion of (1+x)^ 10 , then _ r=1 ^ 10 r^3 ( a_r a_...

Question

If a_r is the coefficient of x^ 10-r in the Binomial expansion of (1+x)^ 10 , then _ r=1 ^ 10 r^3 ( a_r a_ r-1 )^2 is equal to

Accepted Answer

(A)

JEE Main 2023 Mathematics question