fmlae2 - r Triangle: area = 1 2 bh Trapezoid: area = 1 2 (...

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Math 221 C. G´omez Summer 2008 D. Milovich The Last Page of Exam 2 These are the formulas and constants that you’ll be given on this exam. You don’t need to worry about memorizing anything on this list. Trig Identities sin 2 u = 2 sin u cos u cos 2 u = cos 2 u - sin 2 u = 1 - 2 sin 2 u = 2 cos 2 u - 1 sin 2 u = 1 - cos 2 u 2 cos 2 u = 1+cos 2 u 2 cos( A + B ) = cos A cos B - sin A sin B sin( A + B ) = sin A cos B + cos A sin B Geometric Formulas Circle: area = πr 2 , circumference = 2
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Unformatted text preview: r Triangle: area = 1 2 bh Trapezoid: area = 1 2 ( b 1 + + b 2 ) h Cone: volume = 1 3 r 2 h Sphere: volume = 4 3 r 3 Cylinder: volume = r 2 h gravitational constant : 32 (ft / s 2 ) or 9.8 (m / s 2 ) Special Sum Formulas n i =1 i = n ( n +1) 2 n i =1 i 2 = n ( n +1)(2 n +1) 6 n i =1 i 3 = h n ( n +1) 2 i 2...
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