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![[Post New]](/templates/default/images/icon_minipost_new.gif) 3 Apr 2008 21:38:29 IST
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is the ans (a)
solved it through substitution....
took a right angled isosceles triangle..........
@=pi/2
B+C=pi/4
sin@=1
only option a satisfies the given condition hence (a)......
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