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Q.

 If 2 =1.4142,   then what is the value of 2 −1 2 +1 ?  

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a

0.413

b

0.414

c

0.616 

d

0.400

answer is B.

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Detailed Solution

Given- 2 =1.4142  
To determine the value of 2 −1 2 +1  
We can simplify it as,
Question Image Thus, the value is 0.414
Hence, option 2 is the correct option.
 
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