find range ...

JEE Advanced 2015 Online › Calculus questions › find range ...

viii) f( x) =((2x-1)/(x-1))

#Mathematics #Calculus #Relation & Functions

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2 Answers

1357

Manish Shankar ·2014-05-20 02:04:26

y=(2x-1)/(x-1)

xy-y=2x-1

x(y-2)=y-1

x=(y-1)/(y-2)

So range is R-{2}

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Himanshu Giria thanks sir ...
Upvote·0· Reply ·2014-05-20 09:05:57
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591

Akshay Ginodia ·2014-05-19 21:28:57

R ?

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Himanshu Giria no i too got this bt it is given as : R- {2}
Upvote·0· Reply ·2014-05-19 23:53:40
Anik Chatterjee f(x) can't take the value 2 at any point..but how to do this using calculus?
Upvote·0· Reply ·2014-05-20 00:28:45
Sourish Ghosh Hint: Range of g(x) = 1/x is R - {0}
Upvote·0· Reply ·2014-05-20 01:51:51
Akshay Ginodia damn ..i forgot about that..f(x) will never be equal to 2..f(x) -> 2 as x-> infinity
Upvote·0· Reply ·2014-05-20 03:47:19
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