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![[Post New]](/templates/default/images/icon_minipost_new.gif) 19 May 2007 21:23:25 IST
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A subjective approach to Q2
Let the period be T. Then
|sinx| + |cosx| = |sin(x+T)| + |cos(x+T)|
Squaring the above equation, we get
|sin2x| = |sin[2(x+T)]|
|sint| = |sin(t+2T)| where 2x = t
|sint| is periodic with period 
So 2T = 
T = /2
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