Grade 11Trigonometrysum of first n numbers where each term is cubed?ans pls kumaran 9 Years agoGrade 11
arunkumaranApproved Tutor Answer9 Years agosum of first n numbers where each term is cubed is let the term be n (last trem)so[n(n+1)/2]^2 is the sum of first n terms where each term a re cubed