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the image of the point A(2,3) by the li...

the image of the point `A(2,3)` by the line mirror y=x is the point B and the image of B by the line mirror y=0 is the point `(alpha,beta),` find `alpha and beta`

A

`alpha=1,beta=-2`

B

`alpha=0,beta=0`

C

`alpha=2,beta=-1`

D

None of these

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The correct Answer is:
C
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