[Grade 11 Maths: solving arcsin disequality]

I had to solve arcsin(x+1)>0, my teacher told me sin(arcsin(x+1))>sin0 => x+1>0 is right, but it feels somewhat wrong, since sinx is periodic. arcsin(x+1)>arcsin(sin0) => x+1>sin0 seems better to me since the function is biijective, but I feel like I'm missing something to properly explain what's bothering me. Is fact that it is periodic actually the problem? I think I remember it is? If I had to explain this to someone easily I probably couldn't. Could you?

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πŸ‘€︎ u/Bartholomheow
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Disequation problem

Hello so I am trying to understand this problem my teacher gave me a week ago.

The problem goes as such : The sum of two odd consecutive numbers is greater than 1 and greater than the triple of the even number that precedes the first one. What are the two numbers ?

The disequation i made is : (2x+1)+ (2x+3) > 3(2x)

The right one is : (x+1)+(x+2)> (3x-3)

I cant understand why mine is wrong, if someone is willing to help please do.(sorry for my bad english)

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Diseque a imagem
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Blind Girl Here. Give Me Your Best Blind Jokes!

Do your worst!

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Edit: I can't believe how much this has blown up. Thank you everyone I've had a blast reading through the replies πŸ˜‚

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I wanna hear your best airplane puns.

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These aren't dad jokes...

Dad jokes are supposed to be jokes you can tell a kid and they will understand it and find it funny.

This sub is mostly just NSFW puns now.

If it needs a NSFW tag it's not a dad joke. There should just be a NSFW puns subreddit for that.

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Hello guys, today I am up against this guy

e^2z-conj(z) = 1

and I don't have any idea on how to tackle this. I really need to understand this so please if you could give me some insight I would really appreciate it. Thanks

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