Timothy Christian School

E. Derivatives and Integrals. Helpful Formulas . Trig Formulas . Arc Length of a circle: L=rθ or L= d 360 2πr . Area of a sector of a circle: Area= 1 2 r 2 θ or Area= d 360 π r 2 . Solving Parts of a Triangle . Law of Sines: sinA a = sinB b = sinC c . Law of Cosine: a 2 = b 2 + c 2 -2bccosA ... ................
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