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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: musc
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[Post New]13 Jun 2007 23:47:32 IST
    Subject: musc
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monur3 (17)

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1)find domain f(x)=sinx + cosx -1
 
2)find out the value of
[ x][e]  f'(x)/f(x) where  f(x)=   k=12n-1 [coskx +isinkx]
 
3) [n ][ ]   ncos(nn)/ n2 +1
RAHUL
    
[Post New]14 Jun 2007 00:29:03 IST
    Subject: Re:musc
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him26.89 (207)

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ans to ur 3rd qun is  
b'cos cost is [-1,1]
&multiplied by n is .
 
2nd qun
f(x)=  eikx (euler th.)
which is =
eixn(2n-1) = f(x)
f'(x) = in(2n-1)f(x)
=>f'(x)/f(x) = in(2n-1)
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