Question 1: \((x) \quad\left( 2-\sqrt{2}\right)\left( 2+\sqrt{2}\right) \)
Solution:
It is rational number.
Explanation:
\( \left( 2-\sqrt{2}\right)\left( 2+\sqrt{2}\right)\)
\(=\ 2^{2} -\sqrt{2}^{2}\)
\( =4-2=2\)
Question 1: \((x) \quad\left( 2-\sqrt{2}\right)\left( 2+\sqrt{2}\right) \)
Solution:
It is rational number.
Explanation:
\( \left( 2-\sqrt{2}\right)\left( 2+\sqrt{2}\right)\)
\(=\ 2^{2} -\sqrt{2}^{2}\)
\( =4-2=2\)