Complex Numbers AI

The solution of $$x^2 + 9 = 0$$ ? Fill in the blank: x = _____.

What is the value of $$i^2$$ , where i = √-1? Fill in the blank: $$i^2$$ = ____.

What is the set of complex numbers denoted by? Fill in the blank: The set of all complex numbers is denoted by _____

If the complex number z = a + bi, what is the real part of z?

If the complex number z = a + bi, what is the imaginary part of z?

Who first introduced the symbol i for the imaginary unit? Fill in the blank: The symbol i was first introduced by _____?

The square root of -1 is denoted by the symbol i, called the imaginary unit.

The set of complex numbers enabled us to solve any polynomial equation.

Find the real part and the imaginary part of the complex number 7 - 15i. Write the real part and the imaginary part.

Find the real part and the imaginary part of the complex number 18 + 5i. Write the real part and the imaginary part.