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(3) X
+ 2 X + 5 = 0
2
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Example 56
Create a program to generate a common difference sequence ( A : First
item, D : common difference, N : number )
Sum : S ( N ) = A+(A+D)+(A+2D)+(A+3D)+...
=
Nth item : A ( N ) = A + ( N – 1 ) D
X
= – 1 + 2 i , X
1
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E-75
= – 1 – 2 i
2
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