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T O P I C    R E V I E W
Anand Posted - 08/02/2011 : 02:57:19
x= acos+bsin
y= asin-bcos

prove that X+y = a+b
so x+y=
acos+bsin+2acosbsin+asin+bcos-2asinbcos
=a(sin+cos)+b(sin+cos)+2[acosbsin-asinbcos]
=a(1)+b(1)+2 [acosbsin-asinbcos ]

What to do after this step ?
2   L A T E S T    R E P L I E S    (Newest First)
Anand Posted - 08/08/2011 : 04:09:59
Got it
Thanks
royhaas Posted - 08/02/2011 : 07:23:42
The term in brackets is zero.

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