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Trigonometry : Truly difficult Practice Questions. . .

Blazing goIITian

Posted on
8 Sep 2011 12:21:58 IST
Posts: 1508
8 Sep 2011 12:21:58 IST
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Trigonometry : Truly difficult Practice Questions. . .
Engineering Entrance , JEE Main , BITSAT , JEE Advanced , KCET (Engg) , MANIPAL UGET (Engg) , SCRA , TANCET , UPSEE , VITEEE , VITMEE , Mathematics , Trigonometry , academic , Maths

these are too good question. remember to rate me if you like these. :-)

Q) If $a$ and $b$ are positive integers such that

$sqrt{8+sqrt{32+sqrt{768}}}=acos{ rac{pi}{b}}$,

compute the ordered pair $(a,b)$.

Q) Find    y  :

Q) evaluate :

$cos( rac{pi}{7}) + cos( rac{2pi}{7}) + ....... + cos( rac{6pi}{7})$

Q) evaluate :

$sqrt[3]{cos( rac{2pi}{7})}+sqrt[3]{cos( rac{4pi}{7})}+sqrt[3]{cos( rac{8pi}{7})}=?$

Q) Solve the equation $sin 5x + cos 5x = cos 13x$

Q)

Q)

here Q stands for the set of rational numbers.

source : www.artofproblemsolving.com

New kid on the Block

Joined: 21 Aug 2011 22:33:58 IST
Posts: 4
10 Sep 2011 11:48:31 IST
0 people liked this

these are really good questions. do u have answers of these

Scorching goIITian

Joined: 1 Jun 2011 05:26:27 IST
Posts: 207
11 Sep 2011 17:32:57 IST
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Yeah !! do u have answers of these questionzz ;-)

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