rishabh.mission
  • rishabh.mission
plz help
Mathematics
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
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rishabh.mission
  • rishabh.mission
Show that the function f: R ~ R defined by \[f(x) = 2x ^{2} -7 for x \in R is bijective.\]
anonymous
  • anonymous
What is Risbijective?
rishabh.mission
  • rishabh.mission
Sry!! "R is bijective "

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shubhamsrg
  • shubhamsrg
It is bijective when it is both one one(injective) and onto(surjective)
shubhamsrg
  • shubhamsrg
You can verify with the graph.
shubhamsrg
  • shubhamsrg
Or consult NCERT for theoretical proof.
shubhamsrg
  • shubhamsrg
Haa mai hindi janta hu and can not send you message unless you've fanned me as according to your privacy setting.
rishabh.mission
  • rishabh.mission
ok but bro mujhe realtion fuction nahi aata can u help me ???
shubhamsrg
  • shubhamsrg
Bhai 2 saal pehle padha tha ye sab, but I can try to help.
rishabh.mission
  • rishabh.mission
plz bhai jitna aata hai utna bata de kise mai iss chapter k Question kar saku ..
shubhamsrg
  • shubhamsrg
Mai to is type ke ques hamesha graph se karta tha, tum bhi, graph se attempt kar sakte ho warna NCERT to hai hi help ke liye.
rishabh.mission
  • rishabh.mission
ok i'll try !! Abhi tu kya karta hia bhai ?
shubhamsrg
  • shubhamsrg
Saal drop kiya, preparing for JEE, ISI, CMI etc
rishabh.mission
  • rishabh.mission
ok mai bhi Improvent dunga !!
shubhamsrg
  • shubhamsrg
Oh, aapne bhi drop kiya hai? hmm lekin mai improvement nahi de raha .
rishabh.mission
  • rishabh.mission
yep!! n jee ki private coching le rahe ho kya ?
shubhamsrg
  • shubhamsrg
hmm,sort of mai yaha actually 1 remote area me hu, to bahut zyada facilities nahi hai, badi badi coachings nahi hai. Lekin 1 tuition liya hua hai. Tuition cum coaching.
rishabh.mission
  • rishabh.mission
where are you from?
shubhamsrg
  • shubhamsrg
Danapur(near patna)
rishabh.mission
  • rishabh.mission
ok well im from Delhi .
shubhamsrg
  • shubhamsrg
hmm.

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