When the 4th Term Is Constant
Difficulty: Medium · Topics: Discrete Mathematics, Binomial Theorem
≤ft(x^3-frac1x )^n
When this is expanded in decreasing powers of x, the 4th term is a constant. Find n.
Difficulty: Medium · Topics: Discrete Mathematics, Binomial Theorem
≤ft(x^3-frac1x )^n
When this is expanded in decreasing powers of x, the 4th term is a constant. Find n.