Substitutex=cos\alp,\alp∈[0:;π] T
h
e
n
∣
x
+
1
−
x
2
∣
=
2
(
2
x
2
−
1
)
\Leftright
∣
c
o
s
\alp
+
s
i
n
\alp
∣
=
2
(
2
c
o
s
2
\alp
−
1
)
Then∣x+
1−x
2

​
∣=
2
​
(2x
2
−1)\Leftright∣cos\alp+sin\alp∣=
2
​
(2cos
2
\alp−1)
∣
N
2
c
o
s
(
\alp
−
π
4
)
∣
=
N
2
c
o
s
(
2
\alp
)
\Right
\alp
∈
[
0
;
π
4
]
∪
[
3
π
4
;
π
]
∣N
2
​
cos(\alp−
4
π
​
)∣=N
2
​
cos(2\alp)\Right\alp∈[0;
4
π
​
]∪[
4
3π
​
;π]
1)
\alp
∈
[
0
;
π
4
]
\alp∈[0;
4
π
​
]
c
o
s
(
\alp
−
π
4
)
=
c
o
s
(
2
\alp
)
…
cos(\alp−
4
π
​
)=cos(2\alp)…
2.
\alp
∈
[
3
π
4
;
π
]
\alp∈[
4
3π
​
;π]
−
c
o
s
(
\alp
−
π
4
)
=
c
o
s
(
2
\alp
)
…
−cos(\alp−
4
π
​
)=cos(2\alp)…

this is joke just answer 1+1

oh lol

Explanation:

the right answer is the end of world war ii

after the end of a global wwii all the nations involved, in an attempt to create an organization to maintain world peace. this agreement would work settling international disputes via negotiation and arbitration instead of leading the issues escalate to another war.

tenochtitlan (also spelled tenochtitlán), located on an island near the western shore of lake texcoco in central mexico, was the capital city and religious centre of the aztec civilization. the traditional founding date of the city was 1345 ce and it remained the most important aztec centre until its destruction at the hands of the conquering spanish led by hernán cortés in 1521 ce, which led to the final collapse of the aztec empire.