Find all values of : $(2)^{i+1}=?$ 
Find all values of :
$$(2)^{i+1}=?$$

My Try :
$$i+1=\large\sqrt2e^{\frac{i\pi}4}$$
$$(2)^{\large\sqrt2e^{\frac{i\pi}4}}=?$$
now what ?

$$
 2^{i + 1} = e^{\ln 2} e^{i\ln 2} = 2(\cos \ln 2 + i\sin \ln 2)$$
For more example of such computaion 
see my answer here.Matrix raised to a matrix: $M^N$, is this possible? with $M,N\in M_n(\Bbb K).$
