1.In the expansion of (1+3x+3x2+x3)2n(1 + 3x + 3x^2 + x^3)^{2n}(1+3x+3x2+x3)2n, the term which has greatest binomial coefficient isa.(3n)(3n)(3n)th termb.(3n+1)(3n+1)(3n+1)th termc.(3n−1)(3n-1)(3n−1)th termd.(3n+2)(3n+2)(3n+2)th termLogin to continueOnly logged in users canattempt or see the solution.
