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CBSE Class 11-science Answered

evaluate: lim(1-tan x)/(x-pi/4) when x->pi/4
Asked by aashish | 26 Jan, 2014, 07:14: PM
answered-by-expert Expert Answer

It is of the form 0/0.

So, applying L hopital's rule, we have:

 

Given limit

= lim (-sec2x)/(1) when x->pi/4  

= 2

Answered by | 26 Jan, 2014, 07:32: PM
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