M 427K - Trigonometry

M 427K - Trigonometry - A + B ) 2 sin( x ) cos( x ) = sin(2...

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SOME USEFUL TRIGONOMETRY tan( x ) = sin( x ) cos( x ) , cot( x ) = cos( x ) sin( x ) , sec( x ) = 1 cos( x ) , csc( x ) = 1 sin( x ) sin( - x ) = - sin( x ) , cos( - x ) = cos( x ) sin 2 ( x ) + cos 2 ( x ) = 1 tan 2 ( x ) + 1 = sec 2 ( x ) 1 + cot 2 ( x ) = csc 2 ( x ) sin( A + B ) = sin( A ) cos( B ) + cos( A ) sin( B ) cos( A + B ) = cos( A ) cos( B ) - sin( A ) sin( B ) sin( A ) cos( B ) = sin( A - B ) + sin( A + B ) 2 cos( A ) cos( B ) = cos( A - B ) + cos( A + B ) 2 sin( A ) sin( B ) = cos( A - B ) - cos(
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Unformatted text preview: A + B ) 2 sin( x ) cos( x ) = sin(2 x ) 2 cos 2 ( x ) = 1 + cos(2 x ) 2 sin 2 ( x ) = 1-cos(2 x ) 2 NOT INCLUDED HERE Graphs of sin( x ) , cos( x ) , tan( x ) Values of sin( x ) , cos( x ) , tan( x ) at multiples of π 6 , π 4...
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This note was uploaded on 09/18/2011 for the course M 427K taught by Professor Fonken during the Spring '08 term at University of Texas.

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