You should go ask your teach because i am not sure
Please give a picture so I can see
Answer:
1
Step-by-step explanation:
90°/n = 90°/∞ --> 0 , because when you divide number by huge number answer will become less and less, when you divide by ∞, answer will ---> 0.
cos(0°) = 1
1^(2n) = 1^(2∞)= 1^(∞) = 1, because 1 in any power = 1.

Because lim of constant is this constant.
2 sqrt(3)+3sqrt(3)
5sqrt(3)
this is still irrational
we still have the sqrt(3) which is irrational
Answer:
y
=
9
x
2
−
4
y
=
9
x
2
-
4
Interchange the variables.
x
=
9
y
2
−
4
x
=
9
y
2
-
4
Solve for
y
y
.
Tap for more steps...
y
=
√
x
+
4
3
y
=
x
+
4
3
y
=
−
√
x
+
4
3
y
=
-
x
+
4
3
Solve for
y
y
and replace with
f
−
1
(
x
)
f
-
1
(
x
)
.
Tap for more steps...
f
−
1
(
x
)
=
√
x
+
4
3
,
−
√
x
+
4
3
f
-
1
(
x
)
=
x
+
4
3
,
-
x
+
4
3
Step-by-step explanation: