If `(1^2-t_1)+(2^2-t_2)++(n^2-t_n)+=(n(n^2-1))/3` , then `t_n` is equal to `n^2` b. `2n` c. `n^2-2n` d. none of these

If (1^2-t_1)+(2^2-t_2)+---+(n^2-t_n)=(n(n^2-1))/3 , then t_n is equal to a. n^2 b. 2n c. n^2-2n d. none of these

If (1^(2)-t_(1))+(2^(2)-t_(2))+...+(n^(2)-t_(n))+=(n(n^(2)-1))/(3) then t_(n) is equal to n^(2) b.2nc.n^(2)-2nd .none of these

If (1^2-t_1)+(2^2-t_2)+......(n^2-t_n)=1/3n(n^2-1) ,then t_n is :(1) n/2 (2) n-1 (3) n+1 (4) n

If m ,n in Na n dm^2-n^2=13 ,t h e n(m+1)(n+1) is equal to a. 42 b. 56 c. 50 d. none of these

If m ,n in Na n dm^2-n^2=13 ,t h e n(m+1)(n+1) is equal to a. 42 b. 56 c. 50 d. none of these

If (1+t a n1^0). (1+t a n2^0) .(1+t a n3^0)......(1+tan45^0)=2^n , then ' n ' is equal to 16 b. 23 c. 3 0 d. none of these

If (1+t a n1^0)dot(1+t a n2^0)dot(1+t a n3^0)(1+tan45^0)=2^n , then ' n ' is equal to 16 b. 23 c. 3 0 d. none of these