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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: Multiple n submultiple angles
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[Post New]7 Apr 2008 16:08:43 IST
    Subject: Multiple n submultiple angles
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m.viddya (101)

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Q.If 0<</4 and tan/(1-tan2) =x then tan/1+tan2 =
 
1. x/1+x2
 
2.4x/1+x2
 
3.4/1+x2
 
4.x/1+4x2
    
[Post New]7 Apr 2008 16:14:30 IST
    Subject: Multiple n submultiple angles
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raulrag009 (1223)

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(4)Here \\\\ \frac{2\tan{\theta}}{1-\tan^{2}{\theta}}=2x\\\\ \tan{2\theta}=2x\\\\ \sin{2\theta}=\frac{\tan{2\theta}}{\sqrt{1+\tan^{2}{2\theta}}}\\\\ \sin{2\theta}=\frac{2x}{\sqrt{1+4x^{2}}}\\\\ \frac{2\tan{\theta}}{1+\tan^{2}{\theta}}=\frac{2x}{\sqrt{1+4x^{2}}}\\\\ U\;get\;ur\;ans
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[Post New]7 Apr 2008 16:15:23 IST
    Subject: Multiple n submultiple angles
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m.viddya (101)

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can u plz post the solution!
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[Post New]7 Apr 2008 16:16:39 IST
    Subject: Re:Multiple n submultiple angles
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shhhhhhhhhh (17)

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Re:Multiple n submultiple angles
DuN EvR DarE to KnO AbT m3 DeaL NlY ItH da QueS......
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[Post New]7 Apr 2008 16:18:03 IST
    Subject: Multiple n submultiple angles
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raulrag009 (1223)

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i hav posted it
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[Post New]18 Apr 2008 16:18:38 IST
    Subject: Multiple n submultiple angles
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pinnacle (223)

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U cud also do it by puttin theta= pie/6
for verification and gettin answer quickly
I Tried So Hard And Got So Far
But In The End
It Doesnt Even Matter...
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