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find range of (x+2)/x2-8x-4

find range of (x+2)/x2-8x-4

Grade:12

2 Answers

SAGAR SINGH - IIT DELHI
879 Points
10 years ago

Dear student,

Range of (x+2)/x2-8x-4 will be all real numbers except when the den is 0.

x2-8x-4 is to be factorised.

x1=8+4root5/2=4+2root5

x2=4-2root5

 

So the range will be all real numbers except when x takes these two values.

 

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Askiitians Expert

Sagar Singh

B.Tech, IIT Delhi

jagdish singh singh
173 Points
10 years ago

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