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Question

The number of solution(s) of y=|x23| and y=1, is

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 D 4
Curve of y=x2 is


Now move this curve downwards by 3 units
y=x23


Now graph of y=|x23| is


As y=|x23| and y=1 intersects at 4 distinct points, hence the number of solutions is 4.

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