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Mathematics: Post your doubts here!

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upload_2014-5-4_13-14-2.png

when the question says rotation 90 clockwise u first rotate the point (1,0) so it becomes (0,-1) then rotate the point (0 ,1) so it becomes (1. 0) and then u write it in the form of a matrix (0 1)
(-1 0) and u do the same thimd with reflection just reflect the point on the given line simple isnt it ;)
 
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