题目计算:(1)(2−3)2−(6+1)(6−1)(1)(\sqrt{2}-\sqrt{3})^2-(\sqrt{6}+1)(\sqrt{6}-1)(1)(2−3)2−(6+1)(6−1)；(2)(12)−2+63−8+∣1−2∣(2)(\frac{1}{2})^{-2}+\frac{\sqrt{6}}{\sqrt{3}}-\sqrt{8}+|1-\sqrt{2}|(2)(21)−2+36−8+∣1−2∣.知识点：二次根式的混合运算章节：数与式 / 二次根式
