State in each case whether A ⊂ B or A ⊄ B. A = {x : x is a real number,}, B = {x : x is a complex number}

Question

Philoid · Accepted Answer

A ⊂ B

Explanation: we have, A = set of real numbers and B = set of complex numbers, a combination of the real and imaginary number in the form of a+ib, where a and b are real, and i is imaginary.

Since, any real number can be expressed as complex number, A ⊂ B.

State in each case whether A ⊂ B or A ⊄ B.A = {x : x is a real number,}, B = {x : x is a complex number}

State in each case whether A ⊂ B or A ⊄ B.
A = {x : x is a real number,}, B = {x : x is a complex number}