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Q.

Statement-I : Ltx01-cos2xx does not exist.

Statement-II : ⨍ x=x is continuous on R Which of the above statement is correct

 

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a

Only I

b

Both I and II

c

Neither I nor II

answer is C.

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Detailed Solution

Statement I : limx0 1-cos2x2x=limx0sin2 xx  

=limx0sinxx

L H L=-1, R H L=1

 limit does not exist

Statement – II : 

Question Image

fx=x

L H L= limx0-fx=limx0-x=0

R H L= limx0  fx=limx0+x=limx0+x=0

f0=0

L H L=R H L=fωfx=|x| is continuous  on R

 Both Statement I and II are correct

option 3 is correct

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