a) \(\dfrac{15}{\sqrt{6}+1}+\dfrac{4}{\sqrt{6}-2}-\dfrac{12}{3-\sqrt{6}}-\sqrt{\dfrac{1}{6}}\)
b) \(\dfrac{5}{4-\sqrt{11}}+\dfrac{1}{3+\sqrt{7}}-\dfrac{6}{\sqrt{7}-2}-\dfrac{\sqrt{7}-5}{2}\)
c) \(\dfrac{\sqrt{7}-5}{2}-\dfrac{6-2\sqrt{7}}{4}+\dfrac{6}{\sqrt{7}-2}-\dfrac{5}{4+\sqrt{7}}\)
B.1:
\(\dfrac{5}{4-\sqrt{11}}\)+\(\dfrac{1}{\sqrt{3}+7}\)-\(\dfrac{6}{\sqrt{7}-2}\)-\(\dfrac{\sqrt{7}-5}{2}\)
B.2:
\(\dfrac{15}{\sqrt{6}+1}\)+\(\dfrac{4}{\sqrt{6}-2}\)-\(\dfrac{12}{3-\sqrt{6}}\)-\(\sqrt{\dfrac{1}{6}}\)
B.3:
\(\dfrac{\sqrt{7}-5}{2}-\dfrac{6-2\sqrt{7}}{4}+\dfrac{6}{\sqrt{7}-2}-\dfrac{5}{4+\sqrt{7}}\)
B.4:
\(\sqrt{7-2\sqrt{6}}-\dfrac{5}{\sqrt{6}+1}\)