Question

Answer 1

\(1.\sqrt{3^2}+\sqrt{5^2}\\ =\left|3\right|+\left|5\right|\\ =3+5\\ =8\\ 2.\sqrt{4^2}+\sqrt{\left(-2\right)^4}\\ =\left|4\right|+\sqrt{4^2}\\ =4+\left|4\right|\\ =4+4\\ =8\\ 3.\sqrt{2^2}+\sqrt{\left(-7\right)^2}\\ =\left|2\right|+\left|-7\right|\\ =2+7\\ =9\\ 4.\sqrt{\left(-6\right)^2}+\sqrt{6^2}\\ =\left|-6\right|+\left|6\right|\\ =6+6\\ =12\\=\sqrt{\left(-3\right)^2} -\sqrt{\left(-1\right)^4}\\ =\left|-3\right|-\sqrt{1}\\ =3-1\\ =2\\ 6.\sqrt{\left(-11\right)^2}-\sqrt{\left(-9\right)^2}\\ =\left|-11\right|-\left|-9\right|\\ =11-9\\ =2\)