Integral Calculus Formula Sheet

3. If both sin( )x and cos( )x have even powers: Use the half angle identities: i. 12 2 sin ( ) 1 cos(2 )x x ii. 12 2 cos ( ) 1 cos(2 )x x If there are no sec(x) factors and the power of tan(x) is even and positive, use sec 1 tan22x x to convert one tan2 x to sec2 x ................
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