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Vlad [161]
3 years ago
11

Srry im not really good at math so if anyone can help thx

Mathematics
1 answer:
Zinaida [17]3 years ago
4 0

Answer: 2+2=4

Step-by-step explanation: Ummmmm that is math lol

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2sin^2x - sinx - 3 = 0
e-lub [12.9K]
We have that
2sin²<span>x - sinx - 3 = 0
</span>
Let
A------> sin x
so
2A²-A-3=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solutions are
A=-1
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the solution is
A=-1
therefore
sin x=-1
x=arc sin(-1)=-90</span>°

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8 0
3 years ago
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Inessa [10]

Answer:

180

Step-by-step explanation:

=216-(-83)+(-479)

=216+83-479

=299-479

=180

7 0
3 years ago
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