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Ecellent notes & formulas in trignometry must see it

Blazing goIITian

Posted on
6 Oct 2007 19:59:44 IST
Posts: 1069
6 Oct 2007 19:59:44 IST
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11
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Ecellent notes & formulas in trignometry must see it
Engineering Entrance , JEE Main , JEE Advanced , Mathematics , Trigonometry

Trigonometric Identities:

Pythagorean Identities:

Sum / Difference Formulas

Rules of Sign
 Quadrant sin cos tan cosec sec cot I + + + II + - - III - - + IV - + -

Reduction Formulae
 Angle/Function sin cos tan -? -sin ? cos ? -tan ? 90°- ? cos ? sin ? cot ? 90°+ ? cos ? -sin ? -cot ? 180°- ? sin ? -cos ? -tan ? 180°+ ? -sin ? -cos ? tan ? 270°+ ? -cos ? -sin ? cot ? 270°+ ? -cos ? sin ? -cot ? 360°+ ? -sin ? cos ? -tan ?

Half Angle

Double Angle

Co-function Identities
Negative Angle Identities

Power Reducing

Sum To Product

Product To Sum

Other Trigonometry Identities

Friends hope u found this article useful please do comment & rate on this article if found useful

Comments (11)

Blazing goIITian

Joined: 31 Jan 2007 06:17:58 IST
Posts: 1069
6 Oct 2007 22:11:23 IST
0 people liked this

why only rates no comments , please do post ur precious comments too

New kid on the Block

Joined: 11 Mar 2007 22:57:09 IST
Posts: 14
6 Oct 2007 22:20:20 IST
0 people liked this

No Great job.All The Above Formulas are available in any standard textbook for 12th.You needed those nickels very badly!

Blazing goIITian

Joined: 22 Apr 2007 11:21:45 IST
Posts: 2537
6 Oct 2007 23:31:03 IST
0 people liked this

nice.

Hot goIITian

Joined: 25 Jan 2007 18:48:30 IST
Posts: 154
9 Oct 2007 17:08:21 IST
0 people liked this

well..i would say...a good pack of formulaes...
few part of the post is well...appreciative...like the way you have represented the sin, cos and tan...in begnning for better rememberance..
it would be much better if you provide the process of arriving to the results and few reasonings......
it would be helpful if its self written and proved than to copy-paste...
like ....
how would you represent..
tan (a+b) formula...in (hieght/base) form?? think...
well ...make the posts more innovative..its really useful..

Hot goIITian

Joined: 25 Jan 2007 18:48:30 IST
Posts: 154
9 Oct 2007 17:08:51 IST
0 people liked this

oh...one more thing...
KEEP SMILING...........

Blazing goIITian

Joined: 3 Aug 2007 22:20:01 IST
Posts: 415
9 Oct 2007 22:17:02 IST
0 people liked this

good article

Scorching goIITian

Joined: 25 Feb 2007 12:06:41 IST
Posts: 225
10 Oct 2007 09:04:45 IST
0 people liked this

nice article..

Cool goIITian

Joined: 9 Dec 2006 13:44:14 IST
Posts: 68
11 Oct 2007 14:41:09 IST
0 people liked this

useful article....but had seen many articles like this!!! neways....keep posting !!.............

Blazing goIITian

Joined: 16 Mar 2007 11:52:47 IST
Posts: 544
4 Nov 2007 10:30:38 IST
0 people liked this

good article...i found it pretty usefull...!!!!!
keep posting such stuff........!!!!!

New kid on the Block

Joined: 22 Jul 2007 16:12:09 IST
Posts: 3
4 Nov 2007 14:05:20 IST
0 people liked this

ya its awesome keep it up.

Hot goIITian

Joined: 27 Oct 2007 22:58:49 IST
Posts: 110
29 Jan 2008 01:24:15 IST
0 people liked this

i thnk remembering that sin cos thing is easier by "Pandit Badri Prasad, Har Har Bole" rule.

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