mckenziet5299 mckenziet5299 31-01-2024 Mathematics contestada The coefficients of the (3r)ᵗʰ term and the (r+2)tᵗʰ term in the expansion (1+x)²ⁿ are equal, then :A. n=2rB. n=3rC. n=2r+1D. none of these