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| Trigonometry basic formulae |
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Hello again I've found this from www.eformulae.com and as i thought it to be useful pasting it over here Trigonometric Identities: Sum / Difference Formulas | Quadrant | sin | cos | tan | | | cosec | sec | cot | | | | | | | I | + | + | + | | II | + | - | - | | III | - | - | + | | IV | - | + | - | | 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 ? | Negative Angle Identities Other Trigonometry Identities |
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this article: 17 points
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(posted on 29 Aug 2007 16:13:35 IST)
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| Hey yaar plz post ur comment |
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(posted on 29 Aug 2007 16:30:06 IST)
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| Thats too good |
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(posted on 29 Aug 2007 21:40:54 IST)
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| good ..... |
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(posted on 30 Aug 2007 11:54:34 IST)
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| very good man......... |
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