preformulas

preformulas - u 2 , cos u 2 = r 1 + cos u 2 , tan u 2 =...

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Formula Sheet for College Algebra Final Exam sin 2 x + cos 2 x = 1, tan 2 x + 1 = sec 2 x , 1 + cot 2 x = csc 2 x sin( x + y ) = sin x cos y + cos x sin y , cos( x + y ) = cos x cos y - sin x sin y , tan( x + y ) = tan x + tan y 1 - tan x tan y sin 2 x = 2 sin x cos x , cos 2 x = cos 2 x - sin 2 x = 2 cos 2 x - 1 = 1 - 2 sin 2 x , tan 2 x = 2 tan x 1 - tan 2 x sin 2 x = 1 - cos 2 x 2 , cos 2 x = 1 + cos 2 x 2 , tan 2 x = 1 - cos 2 x 1 + cos 2 x sin u 2 = ± r 1 - cos
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Unformatted text preview: u 2 , cos u 2 = r 1 + cos u 2 , tan u 2 = 1-cos u sin u = sin u 1 + cos u sin A a = sin B b = sin C c , a 2 = b 2 + c 2-2 bc cos A s = r , A = 1 2 r 2 A = p s ( s-a )( s-b )( s-c ) where s = a + b + c 2 1...
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