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# I feel dumb for not knowing this! watch

1. Is it mathematically acceptable to show that 2x+a+b>=0 by adding x+b>0 and x+a>=0

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What is the name of the coding language that you TSR mathematicians use to express mathematical expressions/equations in the italic font. I believe you guys also use it to express ">=" "<=" and other mathematical symbols/operations.
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2. I clicked on this by mistake and it's given me an instant headache.
3. Yes, of course.
4. (Original post by Dynamic_Vicz)
Is it mathematically acceptable to show that 2x+a+b>=0 by adding x+b>0 and x+a>=0

Spoiler:
Show
What is the name of the coding language that you TSR mathematicians use to express mathematical expressions/equations in the italic font. I believe you guys also use it to express ">=" "<=" and other mathematical symbols/operations.
For the question in the spoiler, it's called latex

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5. (Original post by lamaragymnast)
I clicked on this by mistake and it's given me an instant headache.
Sorry
6. (Original post by kingaaran)
For the question in the spoiler, it's called latex

Posted from TSR Mobile
Thank you!
7. (Original post by 13 1 20 8 42)
Yes, of course.
The first part of question 1 was quite easy. It's just that I didn't know which of the results to use to obtain the answer to part i) and ii) ; I assumed b=1 so thought that arcsin(x+a/x+b) was the result I needed. What logical steps could I have taken to ensure that I was using the correct result?

I wouldn't have recognised that the constant +- 1/√2 was needed in either results.
8. (Original post by lamaragymnast)
I clicked on this by mistake and it's given me an instant headache.
That's the usual effect maths has on people!
9. (Original post by davros)
That's the usual effect maths has on people!
Does on me. Was my worst subject at school.
10. (Original post by lamaragymnast)
Does on me. Was my worst subject at school.
And now you find yourself posting in a Maths forum on TSR
11. I mean it depends on what stage of education ur at. im doing A levels and im not doing step papers so not knowing that is not dumb at all.
If you have a Bsc or PhD or something like that then maybe
12. (Original post by Toasticide)
I mean it depends on what stage of education ur at. im doing A levels and im not doing step papers so not knowing that is not dumb at all.
If you have a Bsc or PhD or something like that then maybe
Haha thanks for the comforting words. It's just that I've never found the sum of >= and > inequalities.

What A levels are you doing? You want to do a Maths degree?
13. (Original post by Dynamic_Vicz)
Haha thanks for the comforting words. It's just that I've never found the sum of >= and > inequalities.

What A levels are you doing? You want to do a Maths degree?
right now im doing A2's in Maths chemistry and physics and an AS in further maths.
Yes i do want to do a maths degree as i want to be a maths teacher afterwards
I'm not going for the really high end unis like oxford as i'm good at maths.... but not THAT good
14. I thought this thread was going to be "I did not know there was 52 weeks in a year" or something simplified lol .
15. (Original post by Toasticide)
right now im doing A2's in Maths chemistry and physics and an AS in further maths.
Yes i do want to do a maths degree as i want to be a maths teacher afterwards
I'm not going for the really high end unis like oxford as i'm good at maths.... but not THAT good
Ah cool. Your'e doing A2 Chemistry as well . Yeah tbh my grades let me down so even if I wanted to apply to Oxbridge (Cambridge prefered out of the two) it would be an instant rejection.
Do you mind us chatting over here ?http://www.thestudentroom.co.uk/show....php?t=4381572
16. (Original post by TK_23)
I thought this thread was going to be "I did not know there was 52 weeks in a year" or something simplified lol .
17. (Original post by Dynamic_Vicz)
Ah cool. Your'e doing A2 Chemistry as well . Yeah tbh my grades let me down so even if I wanted to apply to Oxbridge (Cambridge prefered out of the two) it would be an instant rejection.
Do you mind us chatting over here ?http://www.thestudentroom.co.uk/show....php?t=4381572
sadly i have to go to the cinema with my friends (seeing dr strange) but ill chat tomorrow, probs 3 English time as i wake up at 1 sometimes :s
18. (Original post by lamaragymnast)
I clicked on this by mistake and it's given me an instant headache.
Now I'm quoting myself, a bit sad. Can't believe my failure with maths seems so popular.
19. (Original post by lamaragymnast)
Now I'm quoting myself, a bit sad. Can't believe my failure with maths seems so popular.
It's a sign!
20. (Original post by Dynamic_Vicz)
It's a sign!
I'm to dumb to know what for though. A minus sign probably.

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