Explanation:
Note that
d
d
x
(
arccos
(
x
)
)
=
−
1
√
1
−
x
2
.
Then, by the chain rule
d
d
x
(
arccos
(
4
x
2
)
)
=
2
⋅
(
arccos
(
4
x
2
)
)
⋅
d
d
x
(
arccos
(
4
x
2
)
)
.
Then, by the chain rule again,
d
d
x
(
arccos
(
4
x
2
)
)
=
−
1
√
1
−
16
x
4
⋅
d
d
x
(
4
x
2
)
,
d
d
x
(
arccos
(
4
x
2
)
)
=
−
8
x
√
1
−
16
x
4
.
Substituting,
d
d
x
(
arccos
(
4
x
2
)
)
=
−
16
x
⋅
arccos
(
4
x
2
)
√
1
−
16
x
4
.
Answer:
both have 4 in each
Step-by-step explanation:
Answer:
None of the above
Step-by-step explanation:
-9 tells the distance between her hand and the keys
Answer:
wow
Step-by-step explanation:
hi, hows ur day??
<span>One-eighth of the 32 students = 1/8 of 32 = 1/8 * 32 = 4
Four students went abroad
</span>