Square root of irrational numbers upto 3 places

Square root of a rational number

Which of the following is a correct statement? Sum of two irrational numbers is always irrational Sum of a rational and irrational number is always an irrational number Square of an irrational number is always an irrational number Square of an irrational number is always a rational number Sum of two rational numbers can never be an integer

Which of the following is a correct statement? (A)Sum of two irrational numbers is always irrational (B) Sum of a rational and irrational number is always an irrational number (C)Square of an irrational number is always an irrational number (D) Sum of two rational numbers can never be an integer

The square of an irrational number is always rational.

The square of an irrational number is always a rational number

Square Root of Complex Number

Are the square roots of all positive integers irrational ? If not, then give an example of such a positive integer, the square root of which is a rational number.