9. Find the measure of the arc represented by the "?"
*
123°

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.

y do u put "subscirbe to ence" on a app for ppl who need with their work?