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Answer:chứng minh lim qn=0 khi n tiến đến dương vô cùng nếu trị tuyệt đối của q<1Explanation
Answer:
Explanation:
recession
[rəˈseSH(ə)n]
NOUN
a period of temporary economic decline during which trade and industrial activity are reduced, generally identified by a fall in GDP in two successive quarters.
synonyms:
economic decline · downturn · depression · slump · slowdown · trough · credit crunch · credit squeeze · stagnation · stagflation · hard times · bust
astronomy
the action of receding; motion away from an observer.
