tolong bantu,,no c,d,e

c.3/√18×√18/√18=3√18/18=1/6√18
d.√6/√48×√48/√48=√6×√48/48=√88/48=
2√22/48=1/24√22
e.2√2/√48×√48/√48=2√96/48=1/24√96