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• trignometry quetions
  Q-1>sin2@=4xy/(x+y)2 ≤1 is true if & only if (a) x+y=1 (b) x=y,x≠0,y≠0 (c)x=y (d)x≠0,y≠0 Q-2>if p=2sin@/(1+cos@+sin@) & q=cos@/(1+sin @) then; a> pq=1 b> q/p=1 c> q-p&# ...
  0·2· #Physics#Mechanics
  asked2009-01-03 17:22:06