Write the complex number in rectangular form.

Write the complex number in rectangular form. 3cis52degrees ( round to 3 decimal places)

What does mean? What I mean, is use the definition, write it out, then use your calculator to evaluate the trig. functions.

Cis = Cos * i sin

No, .

So how would you expand ?

Wouldn't it be 3*cos52 + 3 * i sin52?

Yes, that's right, now just use your calculator to approximate the rectangular components. Rectangular form is:

where (i.e. and are real.)

Here we have:

I got 1.847+2.364i as my answer, is that right?

Yes, that's correct! Good work! :D

Thank you! :D