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![[Post New]](/templates/default/images/icon_minipost_new.gif) 14 Jan 2008 21:00:33 IST
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multiplying and dividing by 1 + cos x we have
lim x (1+cos x)/sin x cos x
lim 2x (1+cosx)/ sin 2x
lim (1+cos x)/ lim sin 2x /2x = lim (1+cos x)/1 = 2
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science-
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the most eternal
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