When we use both... And as subject, the predicate is plural, but we should pay attention to the article before the two nouns?

When we use both... And as subject, the predicate is plural, but we should pay attention to the article before the two nouns?


Yes, but this article is a definite article



If the complex Z is equal to the square root of its conjugate complex, then Z is


a+bi
The conjugate complex number is
a-bi
(a+bi)²=(a-bi)²
a²+abi-b²=a²-abi-b²
abi=0
ab=0
So a = 0 or B = 0
in other words
If the complex Z is equal to the square root of its conjugate complex, then Z is a real number or a pure imaginary number



Z is a complex number and the conjugate of Z * Z + the conjugate of Z / z = 1 + I to find Z
It's about the plural