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  • (cur | prev) 14:11, 26 September 2008โ€Ž Mpaganin (Talk)โ€Ž . . (944 bytes) (+944)โ€Ž . . (New page: == Problem == 1. x[n] is periodic with period N = 7 2. <math> \sum_{n = 0}^{6} x[n] = 2\!</math> 3. <math> a_1 = a_4\!</math> 4. <math> \sum_{n = 3}^{9} (-1)^n x[n] = 3 \!</math> == ...)

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Basic linear algebra uncovers and clarifies very important geometry and algebra.

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