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 February 13th, 2018, 12:27 PM #1 Member   Joined: Oct 2017 From: Rumba Posts: 39 Thanks: 0 Sequences Discrete Math Answer requires justification, how would you do this? Last edited by sita; February 13th, 2018 at 12:29 PM.
February 13th, 2018, 01:02 PM   #2
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Quote:
 Originally Posted by sita Answer requires justification, how would you do this?
I guess I'd just throw it out on the internet and see if anyone will answer it for me. It's a lot easier than cracking your textbook and trying to work through some of them.

 February 13th, 2018, 01:04 PM #3 Global Moderator   Joined: May 2007 Posts: 6,730 Thanks: 689 (a) $4^8$, (b) $4^6$, (c) $4^7$. etc.
February 13th, 2018, 01:42 PM   #4
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Quote:
 Originally Posted by mathman (a) $4^8$, (b) $4^6$, (c) $4^7$. etc.
Thank you i got this for:

(d) i got 4^5

(e) 4^+4^7-4^5

(f) 4^8-3^8

please could you confirm if i've done these right?

February 13th, 2018, 01:43 PM   #5
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Quote:
 Originally Posted by romsek I guess I'd just throw it out on the internet and see if anyone will answer it for me. It's a lot easier than cracking your textbook and trying to work through some of them.
Quote:
 Originally Posted by sita Answer requires justification, how would you do this?
I dont have a copy of textbook hence why i'm asking for assistance.

February 13th, 2018, 01:50 PM   #6
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Quote:
 Originally Posted by sita I dont have a copy of textbook hence why i'm asking for assistance.
Discrete Mathematics: An Open Introduction

February 13th, 2018, 01:54 PM   #7
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 Originally Posted by romsek Discrete Mathematics: An Open Introduction
Never knew this existed, thanks

February 14th, 2018, 01:18 PM   #8
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Quote:
 Originally Posted by sita Thank you i got this for: (d) i got 4^5 (e) 4^+4^7-4^5 (f) 4^8-3^8 please could you confirm if i've done these right?
It looks right, except you have a missed exponent in (e) $4^6+4^7-4^5$

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