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Citaat:
(-4x -2y +2xi -4yi) dus -4x -2y +2xi -4yi = -2 + 5i dus -4x -2y = -2 en 2x -4y = 5 dus x = 9/10 en y = -4/5 |
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Citaat:
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"Mathematics is a gigantic intellectual construction, very difficult, if not impossible, to view in its entirety." Armand Borel
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