Question

6+√-80 ?

A.6+16√5i
B.6+4i√5
C.6+16i√5
D.6+4√5i

√-121 ?

A.-11i
B.11i
C.-11
D.11

√-48 ?

A.-4√3
B.4√-3
C.4i√3
D.4√3i

Answer 1

The answers are
1. B
2. B
3. C