Which of the following functions is equal to

sin

(

θ

–

180°

)
?

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

my answer is$ 12

step-by-step explanation:

because 15 -2=12