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[Post New]8 Feb 2007 12:42:15 IST
    Subject: finding limit of trig. functions whn x-->yis not eual to zero
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nunoxic (1478)

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Olaaa!! Perrrfect answer. 228  [397 rates]
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Or.......

lim [pie/2 - x] tan x
x tends to pie/2
x = pie/2 + h where h tends to 0
thus substitute x = pie/2 + h

lim (h ----> 0 ) (-h) tan (pie/2 + h)
lim [-h] cot (-h)
lim -h /tan (-h)
but tanx/x = 1
thus answer is 1

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