若lim (3n^2+5)An=2,且lim (1-n^2)An?
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若lim(3n^2+5)An=2,且lim(1-n^2)An?若lim(3n^2+5)An=2,且lim(1-n^2)An?若lim(3n^2+5)An=2,且lim(1-n^2)An?lim(3n^
若lim (3n^2+5)An=2,且lim (1-n^2)An?
若lim (3n^2+5)An=2,且lim (1-n^2)An?
若lim (3n^2+5)An=2,且lim (1-n^2)An?
lim (3n^2+5)An=2,
所以
lim (3n^2+5)/(-3)*An=2/(-3)
lim (-n^2-5/3)*An=-2/3
从而
lim (1-n^2)An=-2/3
若lim (3n^2+5)An=2,且lim (1-n^2)An?
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