We use quadratic formula then
For a expression
The quadratic formula is

If underroot values becomes negative we use iota(i)
which has value=√-1
Answer:
42
Step-by-step explanation:
Answer:
csc(-112°)=-csc(68°)
Step-by-step explanation:
Since cosec(x) and sin(x) are reciprocals of each other,
cosec(-112°)=
=
=
(since 112=180-68)
=
(since sin(180-x)=sinx)
=
(since
)
=-cosec(68°)