integral of: secx + tanx 3 derivative of: sinx 4 integral of: sec^2x 本學習集中的詞語(12) derivative of: sinx cosx derivative of: cosx -sinx derivative of: tanx sec²x derivative of: csc x -csc x cot x derivative
integrate odd powers of sine keep one sinx to be du, rewrite remaining sinx as (cos²x-1), u-substitution with u=cosx integrate even powers of sine and cosine use half-angle trig identity to rewrite in terms of cos2x ∫1/a²+x² dx ...