0 0 votes An ant in the plane travels in a spiral such that its position $(x(t), y(t))$ at time $t \geq 0$ is $\left(e^{t} \cos t, e^{t} \sin t\right)$. At time $t=1$, find the real part of $\ln (x(t)+i y(t))$. $-2$ $1$ $0$ $-1$ $2$ Complex Analysis tifrece2023 complex-analysis calculus numerical-answers + – admin 412 views answer comment Share Follow Add Sync Questions Print 0 reply Please log in or register to add a comment.