INTEGRAL CALCULUS INTEGRATION BY PARTS The choice of u and do is subject to trial and error. Identify the appropriate choice of 'u. and do. News: YOU CAN USE THIS! To decide what 'u, to use. the acronvm LIATE is veryr useful. Whichever function comes rst in the given list should be used as u. L -logarithrnic Functions | - Inverse trigonometric Functions A - Algebraic Functions T - Trigonometric Functions E~ Exponential Functions