how do you find the limits of [(1+x) ^(1/2) -1 ] / [ (1-x)^(1/2) -1 ]?
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Originally Posted by alexandrabel90 how do you find the limits of [(1+x) ^(1/2) -1 ] / [ (1-x)^(1/2) -1 ]? x tends to?
oh sorry! i missed that out..it is as x tends to 0.
0/0 so use L'Hopital's Rule
Originally Posted by alexandrabel90 how do you find the limits of [(1+x) ^(1/2) -1 ] / [ (1-x)^(1/2) -1 ]? If you multiply numerator and denominator by (1+x)^(1/2)+ 1 and multiply numerator and denominator by (1- x)^(1/2)+ 1 you get and now you can take x= 0.
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