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Caliph
If Islam Is True Then Why Are Most Muslim Countries Poor?
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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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![If A + B = [[1,0],[1,1]] and A - 2B = [[-1,1],[0,-1]] , then A = ?](http://i.ytimg.com/vi/qCJBSwl4x8A/mqdefault.jpg "If A + B = [[1,0],[1,1]] and A - 2B = [[-1,1],[0,-1]] , then A = ?")
![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).")
