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OpenStudy (aravindg):
Why is the answer 1? I am getting 2! http://screencast.com/t/9tj1PEv6
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OpenStudy (aravindg):
|dw:1398857816343:dw|
OpenStudy (aravindg):
@Vincent-Lyon.Fr
OpenStudy (vincent-lyon.fr):
'Left' and 'right' hand are inverted by a symmetry. Out of the 3 images produced by the mirrors, 2 are produced by 1 reflection i.e. a symmetry => left and right are inverted in these images. The third image is produced by 2 reflections, hence an even number of symmetries => right and left are conserved. |dw:1398858131231:dw|
OpenStudy (aravindg):
Oh okay :) I actually made a silly mistake. Read it as 60 degree. I had the same idea in mind.
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