Solve for z : sqrt3 e^(iπ/4)· z=2sqrt3 e^(i7π/12)
Solve for $z$: $\ \sqrt3\,e^{i\pi/4}\cdot z=2\sqrt3\,e^{i7\pi/12}$.
Explanation of Method
Isolate $z$ by dividing both sides by $\sqrt3\,e^{i\pi/4}$; dividing two numbers in exponential form divides the moduli and subtracts the arguments.
Step 1 · Isolate $z$
$$ z=\frac{2\sqrt3\,e^{i7\pi/12}}{\sqrt3\,e^{i\pi/4}} $$
Step 2 · Divide moduli, subtract arguments
$$ z=\frac{2\sqrt3}{\sqrt3}\cdot e^{i\left(\frac{7\pi}{12}-\frac\pi4\right)}=2\,e^{i\left(\frac{7\pi}{12}-\frac{3\pi}{12}\right)}=2\,e^{i\frac{4\pi}{12}}=2\,e^{i\pi/3} $$
Step 3 · Convert to rectangular form
$$ z=2\left(\cos\frac\pi3+i\sin\frac\pi3\right)=2\left(\frac12+i\frac{\sqrt3}2\right)=1+i\sqrt3 $$
Step 4 · Verify
Substituting back: $\sqrt3\,e^{i\pi/4}\cdot2e^{i\pi/3}=2\sqrt3\,e^{i(\pi/4+\pi/3)}=2\sqrt3\,e^{i7\pi/12}$, matching the right-hand side exactly (checked numerically to full precision as well).
Result
Equations built from products of exponential forms are solved most cleanly by working directly with moduli and arguments rather than expanding to rectangular form first.