Question

Q.2)Which of the following is not irrational? *

$(2 - \sqrt{3} )(2 + \sqrt{3)}$
$(2 + \sqrt{3) {}^{2} }$
$2 \sqrt{7 } \div 7$
​

Answer 1

Answer:

tex 1 billion a year ago I am also a human beings the wavelengths of light and rev 30th the wavelengths of radiation and rev 30th the wavelengths of light and rev 30th the wavelengths of light and rev 30th the

Answer 2

Answer:

option a

Step-by-step explanation:

Because it is in the form of (a+b)(a-b) which is equal to a²-b²

now putting 2 and \sqrt{3} in a² and b²,

we get 4 - 3 = 1 which is not irrational.