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Janusz
办美国文凭加拿大文凭澳洲文凭英国文凭学位证毕业证成绩单
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Wendy Ye
The number of solutions of the equation nsin x = 7x^2+ 2x + 4 for all n belongs to [0,2]
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2 hours ago
The number of solutions of the equation nsin x = 7x^2+ 2x + 4 for all n belongs to [0,2]
![If A = [[2,-1],[3,2]] and B = [[0,4],[-1,7]] , find (3A^2 - 2B + I).](http://i.ytimg.com/vi/0DhveErBAHA/mqdefault.jpg "If A = [[2,-1],[3,2]] and B = [[0,4],[-1,7]] , find (3A^2 - 2B + I).")