1.

Let Abe the image of (2,-1) wr.to y-axis. Without transforming the origin, the axes are turned through an angle of 45^(@) in the clockwise direction. Then A in new system is

Answer»

`(1//sqrt(2),3//sqrt(2))`
`(-1//sqrt(2), -3//sqrt(2))`
`(-3//sqrt(2),1//sqrt(2))`
NONE

ANSWER :B


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