If the constant term in the binomial expansion of ( x^ 5/2 2 - 4 x^1 )^9 is –84 and the coefficient of x^ -3l...

Question

If the constant term in the binomial expansion of ( x^ 5/2 2 - 4 x^1 )^9 is –84 and the coefficient of x^ -3l is 2^ , where < 0 is an odd number, then | l- | is equal to ________.

Accepted Answer

98

JEE Main 2023 Mathematics question

Solution