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The line joining the points $A(2,0)$ and $B(3,1)$ is rotated through an angle of $45^{\circ}$, about A in the anticlockwise direction. The coordinates of B in the new position
\[\begin {array} {1 1} (a)\;(2 ,\sqrt {2}) & \quad (b)\;(\sqrt {2},2) \\ (c)\;(2,2) & \quad (d)\;(\sqrt {2},\sqrt 2) \end {array}\]
jeemain
eamcet
math
2011
q63
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Sep 23, 2013
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meena.p
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$ (a)\;(2 ,\sqrt {2})$
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Nov 7, 2013
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pady_1
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