18MCQ1 markજો Sm=nS_m = nSm=n અને Sn=mS_n = mSn=m તો Sm+n=S_{m+n} =Sm+n=A.−(m+n)-(m + n)−(m+n)CorrectB.0C.n+mn + mn+mD.2m–2n2m – 2n2m–2nLog in to generate solution