# Inverse Trig functions

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• February 8th 2008, 05:45 AM
free_to_fly
Inverse Trig functions
How do I write arcsin i in the form a+ib, where a and b are real numbers?
• February 8th 2008, 06:46 AM
Plato
$\arcsin (z) = - i\log \left[ {iz + \left( {1 - z^2 } \right)^{1/2} } \right]$