evaluate the principal value of $i^{i+1}$ and derive a general expression for $\arccos(A)$, where $A$ is a real number $> 1$ and hence find $\arccos (3)$, writing your answer in the same form,
have to use quadratic equation that uses $\exp(iz)$
evaluate the principal value of $i^{i+1}$ and derive a general expression for $\arccos(A)$, where $A$ is a real number $> 1$ and hence find $\arccos (3)$, writing your answer in the same form,
have to use quadratic equation that uses $\exp(iz)$