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b) Cho tam giác đều ABC có tâm G, tìm ảnh của điểm B và ảnh của tam giác GCA qua phép quay tâm G góc quay -90 độ
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Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?
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b) Cho tam giác đều ABC có tâm G, tìm ảnh của điểm B và ảnh của tam giác GCA qua phép quay tâm G góc...