username943595
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#1
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#1
I can't for toffee get around indices.

Can someone please explain how I'd turn y=10/x into an indice?

The question is "Find the equation of the normal to the curve y=10/x at the point (1,10)"
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KaylaB
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#2
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#2
(Original post by Elliwhi)
I can't for toffee get around indices.

Can someone please explain how I'd turn y=10/x into an indice?

The question is "Find the equation of the normal to the curve y=10/x at the point (1,10)"
This question relies on knowing this rule about indices
Image
If this is unfamiliar to you, I strongly recommend learning it.

But does this clear up how to turn  y = \frac{10} {x} into an indice?
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Desiboi101
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#3
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#3
10x^-1


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KaylaB
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#4
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#4
(Original post by Desiboi101)
10x^-1


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Congrats, you've just posted the answer and helped no one in the process :naughty:
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username1628823
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#5
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#5
Index is the singular of indices. It's a mistake I make all the time, except I write indexes instead of indices.


I'd strongly recommend making a real effort to learn all of the rules for index notations ASAP, because they are essential in all of the core modules. You're setting yourself up to fail otherwise. Try this video:

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Desiboi101
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#6
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#6
(Original post by KaylaB)
Congrats, you've just posted the answer and helped no one in the process :naughty:
Congrats, you're an ars*ehole


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3121
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#7
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#7
(Original post by Desiboi101)
10x^-1


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Big round of applause, it wasn't a competition… you could've at least explained that 1/x = x^-1 which needs to be multiplied by 10 giving 10/x on one side and 10x^-1 on the other hence the answer, it's about helping people learn not competing for an answer
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username943595
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#8
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#8
(Original post by KaylaB)
This question relies on knowing this rule about indices
Image
If this is unfamiliar to you, I strongly recommend learning it.

But does this clear up how to turn <a rel="nofollow" href="javascript:void(0)"><img src="https://www.thestudentroom.co.uk/latexrender/pictures/76/76b68d871fbaded4917b60f275653e8b.png" width="53" height="24" style="border: 0px; margin: 0px; padding: 0px; vertical-align: -7px;" alt=" y = \frac{10} {x} " title=" y = \frac{10} {x} " onclick="newWindow=window.open('https://www.thestudentroom.co.uk/latexrender/latexcode.php?code=+y+%3D+%5Cfrac%7B10%7D+%7Bx%7D+','latexCode','toolbar=no,location=no,scrollbars=yes,resizable=yes,status=no,width=460,height=320,left=200,top=100');" /></a> into an indice?
Ah, this is the one pesky rule I keep forgetting. :/ Thank god for Christmas holidays and C1 revision :')


(Original post by Jasaron)
Index is the singular of indices. It's a mistake I make all the time, except I write indexes instead of indices.


I'd strongly recommend making a real effort to learn all of the rules for index notations ASAP, because they are essential in all of the core modules. You're setting yourself up to fail otherwise. Try this video:

"Index is the singular of indices" I don't think any Maths teacher has ever told me that. Thanks for the video - I'll come back to it later once I've done this exercise aha))

(Original post by zayn008)
Big round of applause, it wasn't a competition… you could've at least explained that 1/x = x^-1 which needs to be multiplied by 10 giving 10/x on one side and 10x^-1 on the other hence the answer, it's about helping people learn not competing for an answer
GOD BLESS YOUR SOUL FOR THIS EXPLANATION: I GET IT NOW!!!!
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Desiboi101
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#9
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#9
(Original post by zayn008)
Big round of applause, it wasn't a competition… you could've at least explained that 1/x = x^-1 which needs to be multiplied by 10 giving 10/x on one side and 10x^-1 on the other hence the answer, it's about helping people learn not competing for an answer
But I didn't explain, so why are you crying?


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ha.anon90
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#10
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#10
(Original post by Desiboi101)
But I didn't explain, so why are you crying?


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You're so smart lad kussum

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Muttley79
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#11
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#11
(Original post by Desiboi101)
10x^-1


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Please read the posting guidelines for the Maths forum - we don't post answers, just hints
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Desiboi101
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#12
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#12
(Original post by Muttley79)
Please read the posting guidelines for the Maths forum - we don't post answers, just hints
Arrest me


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username1842595
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#13
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#13
You guys need to chill
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RDKGames
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#14
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#14
(Original post by sameehaiqbal)
You guys need to chill
No thanks. Next person to defy the forum rules in the good name mathematics shall be beheaded!!
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username1842595
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#15
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#15
(Original post by RDKGames)
No thanks. Next person to defy the forum rules in the good name mathematics shall be beheaded!!
Oh, you again.
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