3 Find all branch points of arccos z = −i log (z + √z² − 1), and plot them, together with your choice of branch cut so a
Posted: Wed May 04, 2022 10:34 am
3 Find all branch points of arccos z = −i log (z + √z² − 1), and plot them, together with your choice of branch cut so arccos z is well-defined in the real segment (-1,1). Now show, by evaluating arccos (0), that the branch of the logarithm chosen reproduces the well-known 27 periodicity of the cosine.