Wiskunde week 3, antw - Opgavencollege Wiskunde 1 24...

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Opgavencollege Wiskunde 1, 24 September 2010 Les 3 Uitwerkingen Steuncollege Wiskunde 1 Les 3 Uitwerkingen Pag. 1/4 Opgave 1 7 4 5 5 4 5 3 2 3 2 3 6 9 3 9 6 3 2 8 3 2 4 8 8 4 8 8 4 8 20 16 x y x x y x y x y y y x y x y y y   Opgave 2 a) * . 2 5 log 25 5 25 5 2 x x x b) 4 1 1 2 16 16 log 2 2 2 4 x x x x   . c) * 1 2 64 log 0,5 64 8 x x x . d) 0 12 log 0 12 1 x x x . e) * . Dit kan niet. 10 log 0 10 0 x x f) (of 2 x 4 log 16 4 16 2 x x x   , maar dit is geen oplossing omdat het grondtal per definitie niet negatief mag zijn). g) * 1 1 log 3 1 3 3 x x x    . h) x . 3 3 log 6 3 3 6 6 27 21 x x x i)  3 3 3 log 3 log 2 3 2 log 3 2 3 2 3 x x x x x 2 2 2 3 6 9 9 3 2 9 0 3 2 9 x x x x x x x x x 0 3 x 9 2 2 9 0 x x . j) * 7 7 7 7 7 log 7 log 19 1 log 1 7 7 19 19 19 x x x x x x x
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