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Algebra

Anshul Jangalwa's Avatar
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Joined: 27 Sep 2007
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25 Mar 2009 17:59:03 IST
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FUNCTIONS
None

Find the domain of .

RATES ASSURED,


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Blazing goIITian

Joined: 7 May 2007
Posts: 1724
25 Mar 2009 18:12:11 IST
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PLS NOTIFY WHETER ANSWER CORRECT OR NOT.

Anshul Jangalwa's Avatar

Scorching goIITian

Joined: 27 Sep 2007
Posts: 211
25 Mar 2009 18:29:18 IST
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I got the same answer but the given  answer is ,  .

If we take x E 6.35  between   +-6<x<+-7  (or any number(number present in  ) then   F(x)=1/0  , so it is not defined int hte interval u gave .

+-=plus minus

XYZ's Avatar

Hot goIITian

Joined: 18 Jan 2009
Posts: 193
25 Mar 2009 18:58:54 IST
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Yes, indeed the answer is .

 

If you want I can give the solution also. Or if you wanted to confirm the answer given, then I can say that the given answer is correct.

XYZ's Avatar

Hot goIITian

Joined: 18 Jan 2009
Posts: 193
25 Mar 2009 19:25:57 IST
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OK. Here's the solution:-

 


Blazing goIITian

Joined: 7 May 2007
Posts: 1724
25 Mar 2009 19:43:41 IST
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HEY,

MY MISTAKE.   I MISTOOK THE GIF AS FRACTION.

WITH TAKING THAT INTO ACCOUNT,

Anshul Jangalwa's Avatar

Scorching goIITian

Joined: 27 Sep 2007
Posts: 211
25 Mar 2009 23:58:34 IST
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HOW , [|x|-1]<-5 is possible, before this step there is mod then we r taking [|x|-1]<-5  and [|x|-1]>5 . plz explain!!

XYZ's Avatar

Hot goIITian

Joined: 18 Jan 2009
Posts: 193
26 Mar 2009 00:13:34 IST
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Dear, it is correct.

For example, consider the following

If we are given 

 

then removing the mod sign, we have

x<(-5) and x>5. In fact, if you are not satisfied, then you can put the values and see. You'll find that the condition is satisfied.

 

This is how we solve the modulus function.

 

Hope you understand!!!




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