AP CALCULUS AB and BC Final Notes Trigonometric Formulas 1 sin θcos 2 θ=1 2 1tan θ=sec 2 θ 3 1cot θ=csc 2 θ 4 θ sin(−θ) =−sinθ 5 Note that the expression a3b3c3−3abc is homogenous wrt a, b, and c hence no linear factors exist, as the degree of the expression is 3 and we have a factor of degree 1, the other factor must be of degree 2 Hence we have the other factor = (a2 b2 c2) k (ab bc ca) ;and 437 460
Factorise B C C A C A A B A B
