MathematicsEasy53×since 2002Q3277If the set R={(a,b):a+5b=42,a,b∈N}R=\{(a, b): a+5 b=42, a, b \in \mathbb{N}\}R={(a,b):a+5b=42,a,b∈N} has mmm elements and \sum_\limits{n=1}^m\left(1-i^{n !}\right)=x+i y, where i=−1i=\sqrt{-1}i=−1, then the value of m+x+ym+x+ym+x+y isA12B4C8D5Check answerSkip