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" 14."1.2^(2)+2.3^(2)+3.4^(2)+...

" 14."1.2^(2)+2.3^(2)+3.4^(2)+

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If S=(1)/(1+1^(2)+1^(4))+(2)/(1+2^(2)+2^(4))+(3)/(1+3^(2)+3^(4))+......oo then find the value of 14S.

1-(3)/(16)+(1.4)/(1.2)((3)/(16))^2- (1.4.7)/(1.2.3)((3)/(16))^3 + …..=

4 (2x-3) ^ (2) - (2x-3) -14 = 0

Locate the points: (1,1),(1,2),(1,3),(1,4) (2, 1),(2,2),(2,3),(2,4)(1,3),(2,3),(3,3),(4,3)(1,4),(2,4),(3,4),(4,4)

Given A=[(1,4),(2,3)]_(2xx2) and B =[(1,4,2),(2,3,0)]_(2xx3) , Find AB.

The rank of [(1,4,-1),(2,3,1),(1,1,2)] is

Compute the indicated products : (1) [{:(3,-1,4),(2,3,1):}][{:(1,3,4),(2,1,0),(-3,2,3):}] (2) [{:(1,3),(2,1):}][{:(4),(-1):}] (3) [{:(1,4,2),(5,-2,3):}][{:(2,-4),(1,-3),(4,0):}] (4) [1" "2," "3][{:(2),(4),(6):}] (5) [{:(2),(4),(6):}][1" "2," "3]