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Differential Calculus
fillerapide's Avatar
fillerapide
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Joined: 24 Nov 2008
Post: 38
28 Nov 2008 20:17:00 IST
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Functions 36
Engineering Entrance , JEE Main , JEE Main & Advanced , Mathematics , Differential Calculus

 


 


36. A function RR is defined by


 


                                    


 


      Find the interval of values of   for which f is onto?


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akki ~~ unlucky forever ~~'s Avatar

akki ~~ unlucky forever ~~
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Joined: 11 May 2008
Posts: 491
28 Nov 2008 21:20:07 IST
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let y = f(x)


cross multiplying



as, so D > 0


simplifying,



for f(x) to be onto


=> D < 0




 


                        * * * * * *


 
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