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Trignometry

Blazing goIITian

 Joined: 19 Jan 2008 Post: 1142
17 Feb 2012 16:07:59 IST
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3
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Maximum and Minimum
Engineering Entrance , JEE Main , JEE Main & Advanced , Mathematics , Trigonometry

Max. and Min. value of f(x)  = sin 5 (x)+cos (x)

Blazing goIITian

Joined: 19 Jan 2008
Posts: 1142
17 Feb 2012 16:09:03 IST
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actually it is f(x) = sin5(x)+cos(x)

Hot goIITian

Joined: 14 Feb 2012
Posts: 191
17 Feb 2012 18:17:20 IST
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max value  +2 n min value -2 ..

Hot goIITian

Joined: 15 Feb 2012
Posts: 180
6 Mar 2012 12:18:48 IST
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f(x)=sin5x+cosx

f(x)=sin5x+2 cos2(x/2) -1

f(x)max=(sin5x)max +2cos2(x/2)max  -1

f(x)max=1+2-1

f(x)max =2

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