1.

यदि `a=sqrt(2)+1,b=sqrt(2)-1` हो तो `1/(a+1)+1/(b+1)` का मान बताएं?

Answer» Correct Answer - B
`a=sqrt(2)+1,b=sqrt(2)-1`
`1/(a+1)+1/(b+1)=1/(sqrt(2)+1+1)+`
`1/(sqrt(2)-1+1)=1/(sqrt(2)+2)+1/(sqrt(2))`
`=1/(sqrt(2)(sqrt(2)+1))+1/(sqrt(2))`
`=(1+sqrt(2)+1)/(sqrt(2)(sqrt(2)+1))=(2+sqrt(2))/(2+sqrt(2))=1`


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