1.The coefficient of x4x^4x4 in the expansion of (1−x+2x2)12(1 - x + 2x^2)^{12}(1−x+2x2)12 is:a.(123)\binom{12}{3}(312)b.(133)\binom{13}{3}(313)c.(144)\binom{14}{4}(414)d.(123)+3(133)+(144)\binom{12}{3} + 3\binom{13}{3} + \binom{14}{4}(312)+3(313)+(414)Login to continueOnly logged in users canattempt or see the solution.
