Express the complex number $z=7+11i$ in polar form.

In Exercises 11–14, plot each complex number. Then write the complex number in polar form. You may express the argument in degrees or radians. 1 − i

Write each complex number in rectangular form. If necessary, round to the nearest tenth. 8(cos 60° + i sin 60°)

In Exercises 15–18, write each complex number in rectangular form. If necessary, round to the nearest tenth. 6 (cos 2π/3 + i sin 2π/3)

_ Write −√3 + i in polar form.

Express the complex number $z=2-4i$ in the polar form.

Express the complex number $z=1-\frac{\sqrt{3}}{3}i$ in polar form.

Convert the complex number $z=12\(\left\)(\(\cos\)90\(\degree\)+i・\(\sin\)90\(\degree\]\right\))$ from polar to rectangular form.

Convert the complex number $z=\(\sqrt\)2\(\left\)(\(\cos\]\frac{7\pi}{4}\)+i・\(\sin\[\frac{7\pi}{4}\]\right\))$ from polar to rectangular form.