Integration by Parts (Leaving Cert Applied Maths): Flashcards

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Integration by Parts
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What does integration by parts integrate?

Products of two functions

Integration by parts relation to differentiation

Reverse of the product rule

Integration by parts formula

∫u⋅dv=uv−∫v⋅du\int u \cdot dv = uv - \int v \cdot du

Role of uu in integration by parts

Part to differentiate

Role of dvdv in integration by parts

Part to integrate

What is the INLATE rule used for?

Choosing which function is uu (differentiate) and which is dvdv (integrate)

INLATE: What does 'In' stand for?

Inverse trigonometric functions

INLATE: What does 'L' stand for?

Logarithmic functions

INLATE: What does 'A' stand for?

Algebraic functions

INLATE: What does 'T' stand for?

Trigonometric functions

INLATE: What does 'E' stand for?

Exponential functions

How to use INLATE to choose uu?

Function earlier in INLATE is uu (differentiate), later is dvdv (integrate)

When doesn't integration by parts work?

For composite functions - use substitution instead

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