### Home > PC > Chapter 11 > Lesson 11.2.1 > Problem 11-71

11-71.

Find the rectangular form of each complex number. Use exact values! Homework Help ✎

*z*= 6 (cos() + *i*sin()) *z*= 7 (cos() + *i*sin())

Substitute the exact values for sine and cosine of 5*π*/6.

Distribute.

Recall how you graph complex numbers.Where would this point be in the *xy*-plane?