PLEASE HELP ME ASAP!!!!!!!!!! I PUT THE WRONG SUBJECT ITS NOT HISTORY ITS ALGEBRA

Answer:
csc
(
x
)
,
x
=
π
3
x
+
2
y
+
z
x
+
y
+
z
,
x
=
2
,
y
=
3
,
z
=
1
cos
(
x
)
,
x
=
π
2