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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: Limit
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hsbhatt (3345)

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find: lim_{x  ightarrow pi} rac{1}{x-pi}(sqrt{ rac{4cos^2x}{2+cosx}}-2)
 

    
the.sniper (637)

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sir but we have to know the latex language to use it and i dont know it thats the problem

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sboosy (2970)

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I think answer is 0.i applied lhospital rule
so just differentiating the numerator i get ans=0
pls correct me if wrong
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sboosy (2970)

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am i right or not?
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studyid (1654)

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hey i am getting -4.

whats the ans. any ways... ??
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raulrag009 (1194)

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iam gettin 0
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hsbhatt (3345)

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answer is zero. But what is keeping you guys from posting the method? Mebbe there is something to be learnt here (a big hint fellas)
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studyid (1654)

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hey sorry guys ,

    i am also getting 0 as the answer........

    sorrry i got my mistake... .....
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hsbhatt (3345)

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again no method. cmon guys dont be afraid to stick your neck out!
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studyid (1654)

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hey most of here hav done the sum with the help of l' hospital method...
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raulrag009 (1194)

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lim      (2cosx-22+cosx)/root(2+cosx) *(x-pie)
x-pie
 
Apply Lhospital rule
 
 
[-2sinx   +  sinx/root(2+cosx) ]  /   (x-pie)/2root(2+cosx)    +   root(2+cosx)
 
put x=pie
 
u get  0 in numerator and   1 in denominator 
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studyid (1654)

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if there is any other method then please post it here.

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studyid (1654)

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exactly,:: gettin 0 in the numerator and 1 in the denominator..              
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elastiboysai (2327)

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Raulrag
Though you have got thre right ans,you are wrong.
 
[ ]4cos^2x is mod[2cosx] n not 2 cosx
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elastiboysai (2327)

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Re:Limit
Hi guyz
I have solved it
but img isnt clear.
So downld it and magnify 2 view.
 
Ok guyz,
Ive pasted it as 2 images in the next page, go to the next page

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