Yes. Rational numbers are always the quotient of two integers. Integers are always real, and you cannot divide a real number by another real number and get an imaginary number. So, true.
true
A complex number has a real part and a (purely) imaginary part, So imaginary numbers are a subset of complex numbers. But the converse is not true. A real number is also a member of the complex domain but it is not an imaginary number.
Yes, the pitch circle is an imaginary circle on the gear that passes through the gear teeth and the addendums.
False.
Yes. Rational numbers are always the quotient of two integers. Integers are always real, and you cannot divide a real number by another real number and get an imaginary number. So, true.
Some antonyms for "imaginary" are - actual, real, substantial, true
fact: when it is true/real and not imaginary or opinion.
What do you mean prove that they are true? There's no true or false - they are simply there in the sky, imaginary figures.
If you mean factors then it is true because a composite number has more than two factors.
true
False means it is not real
Not sure, but I think it's true
True. Complex numbers have a real part and an imaginary part. If either one of these is zero, the complex number will be a pure real or a pure imaginary.
False. Irrational numbers are real numbers.
true
A complex number has a real part and a (purely) imaginary part, So imaginary numbers are a subset of complex numbers. But the converse is not true. A real number is also a member of the complex domain but it is not an imaginary number.