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Question

The number of real solution(s) of the equation x23+x13−2=0 is/are

A
1
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B
2
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C
3
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D
4
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Solution

The correct option is B 2
x23+x132=0
Let x13=t
Equation then transforms to
t2+t2=0
t2+2tt2=0
t(t+2)1(t+2)=0
t=1,2
x1/3=1 or x1/3=2
Equation has two roots .

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