need help

[sour jasper]

help

[subtle vault]

you probably want to use logarithmic differentiation

but that'll give you something of the form 0*-infinity

so then you'll have to use L'Hôpitals

[sour jasper]

how?

[subtle vault]

okay

[stiff kraken]

My first instinct is to use Euler's formula and the logarithmic definition of arctan.

[subtle vault]

I checked and the way I said works

[remote arrow]

@sour jasper That is largely correct; the exponent of the expression after the 4th equal sign should have an extra factor of 1/2