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What will be the value of y if y³-y-6=0 ,find y?? Very tuff questions plz solve this

What will be the value of y if y³-y-6=0 ,find y?? Very tuff questions plz solve this

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1 Answers

Arun
25750 Points
6 years ago
Dear student
 
By hit and trial method 
 
y = 2 is the solution.
 
Now
(y³ - y - 6) /(y -2) = (y² +2y +3)
 
Now y² +2y +3 has no real solution.
 
Hence y = 2 has only real solution

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