# Match the vocabulary word to its correct definition. 1. imaginary part of a complex number a number defined with the property

Match the vocabulary word to its correct definition.
1. imaginary part of a complex number
a number defined with the property that 12 = -1, so that √-1 = i
2. multiplicative inverse
the sum of a real number and an imaginary number: a + bi, where a is a real number and b is the imaginary part
3. real part of a complex number
the part of a complex that is multiplied by i; so, the imaginary part of the complex number a + bi is b; the imaginary part of a complex number is a real number
4. imaginary number
the part of a complex that is not multiplied by i. So, the real part of the complex number a + bi is a; the real part of a complex number is a real number
5. complex conjugate
the inverse of a complex number a + bi is a complex number c + di such that the product of these two numbers equals 1
6. complex number
the conjugate of a complex number has the opposite imaginary part. So, the conjugate of a + bi is a – bi. Likewise, the conjugate of a – bi is a + bi. So, complex conjugates always occur in pairs
7. i
any nonzero multiple of i; this is the same as the square root of any negative real number