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P3 Integration help
∫ [(e^x - e^(-x)]² dx
I tried to apply the ∫ e^(ax + b) dx rule but couldn't
I tried to apply the ∫ e^(ax + b) dx rule but couldn't
You'll be having a big surprise on how to solve this as soon as you get to P5 though... (or FP1, i dunno where they've put "hyperbolic functions" those bastards 
)
)mockel
Just square the expression first (as required), and you get:
INT [e^2x - 2 + e^(-2x)] dx
which integrates without too many problems.
INT [e^2x - 2 + e^(-2x)] dx
which integrates without too many problems.
ah..how easy!
what about:
INT 2 / cos²(x/2) dx
INT 2 / cos²(x/2) dx
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