Answer:
<h2>
12(cos120°+isin120°)</h2>
Step-by-step explanation:
The rectangular form of a complex number is expressed as z = x+iy
where the modulus |r| =
and the argument 
In polar form, x = 

Given the complex number,
. To express in trigonometric form, we need to get the modulus and argument of the complex number.

For the argument;

Since tan is negative in the 2nd and 4th quadrant, in the 2nd quadrant,

z = 12(cos120°+isin120°)
This gives the required expression.
The statements that would complete the proof where ∠2 ≅ ∠7 by the transitive property are:
∠2 ≅ ∠3
∠3 ≅ ∠7
<h3>What is the Transitive Property?</h3>
The transitive property states that if x = y, and y = z, then x = z.
From the image given below, we have:
∠2 ≅ ∠3 because they are vertical angles which must be congruent.
∠3 ≅ ∠7 because corresponding angles are congruent.
Applying the transitive property, we can state that: ∠2 ≅ ∠7.
Therefore, the statements that would complete the proof are:
Learn more about the transitive property on:
brainly.com/question/2437149
#SPJ1
The answer is BAD. Hope this helps
Answer:
210x
Step-by-step explanation: