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# further maths help watch

When proving this, why did he use the equation he's trying to prove for the Kth term and the other equation for (K+1)? thanks
2. (Original post by Maths&physics)

Its ok, I got help with that last question, thanks. When proving this, why did he use the equation he's trying ti prove for the Kth term and the other equation for (K+1)? thanks

Because that's how induction works.

He assumed that the proposition, which is , to be TRUE for .

This clearly means that we now have as a TRUE relation that we can use.

When you move onto , you need to start with recurrence relation, so when writing down you need to use the recurrence relation. The key part is then using the inductive assumption and put it INSIDE the first relation, and simplify to show the second relation is true for . So you need to work with both - it's a basic principle of induction.
3. (Original post by RDKGames)
Because that's how induction works.

He assumed that the proposition, which is , to be TRUE for .

This clearly means that we now have as a TRUE relation that we can use.

When you move onto , you need to start with recurrence relation, so when writing down you need to use the recurrence relation. The key part is then using the inductive assumption and put it INSIDE the first relation, and simplify to show the second relation is true for . So you need to work with both - it's a basic principle of induction.
thanks
4. Notnek bit of a disaster with the moving of posts here, now I'm the thread starter since I posted the response before he made this thread. Fix pls

(Original post by Maths&physics)
thanks
Best if you just create new threads with appropriate titles corresponding to your topic question whenever you need to ask something.
5. (Original post by RDKGames)
Notnek bit of a disaster with the moving of posts here, now I'm the thread starter since I posted the response before he made this thread. Fix pls

Best if you just create new threads with appropriate titles corresponding to your topic question whenever you need to ask something.
I will do. thanks again
6. (Original post by RDKGames)
Notnek bit of a disaster with the moving of posts here, now I'm the thread starter since I posted the response before he made this thread. Fix pls
I just changed the time of your post and that's fixed it.
7. (Original post by Notnek)
I just changed the time of your post and that's fixed it.
Didn't even know that was a thing mods can do lol
8. (Original post by RDKGames)
Didn't even know that was a thing mods can do lol
its ok. I got it.
9. (Original post by RDKGames)
Didn't even know that was a thing mods can do lol
It's not something we're meant to do regularly. But it can be tempting to bump threads by changing the post time

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