PP Section 8.1 - The Addition Formulas ( 29 ( 29 cos cos...

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Unformatted text preview: The Addition Formulas ( 29 ( 29 cos cos cos sin sin cos cos cos sin sin + =-- = + ( 29 ( 29 sin sin cos cos sin sin sin cos cos sin + = +- =- For Cosine: For Sine: ( 29 ( 29 tan tan 1 tan tan tan tan tan 1 tan tan tan +- =-- + = + For Tangent: Example . 105 cos of e exact valu the Find ) 45 60 cos( ) 105 cos( + = 45 sin 60 sin 45 cos 60 cos- = 4 6 2 2 2 2 3 2 2 2 1- =- = Example . 12 sin of e exact valu the Find - - = - 3 4 sin 12 sin =- sin cos sin cos 4 3 3 4 4 6 2 2 2 2 3 2 1 2 2- = - = Example . tan of e exact valu the Find 12 - = 4 3 tan 12 tan 4 3 4 3 tan tan 1 tan tan +- = 3 1 1 3 +- = Proving Identities cos 2 sin and sin 2 cos = - =...
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This note was uploaded on 01/22/2011 for the course MATH 2 taught by Professor Gardner during the Fall '08 term at Irvine Valley College.

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PP Section 8.1 - The Addition Formulas ( 29 ( 29 cos cos...

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