Q–3:| a) Find all m > 1 such that 27 = 9 (mod m). [1 о 1] b) If A = |0 1 1 is a zero-one matrix, find A A A2]. li o ol b) Find the inverse of the encrypting function f(x) = (5 – x) mod 26,0 < x < 25, and use it to decrypt the message "ZRQUBFNB".

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Q-3:
a) Find all m > 1 such that 27 = 9 (mod m).
[1
b) If A = |0
1
1
1| is a zero-one matrix, find A ^ Al2!.
[1
b) Find the inverse of the encrypting function
f (x) = (5 – x) mod 26, 0 < x < 25,
and use it to decrypt the message "ZRQUBFNB".
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Transcribed Image Text:AutoSave MT131 TMA_April_2022 -... Search (Alt+Q) Yasser Ahmed Abozeid 不 ff YA -G A File Home Insert Draw Design Layout References Mailings Review View Help P Comments A Share O Find - Cambria Math v 14 A^ A Aav A E E- E. E E AaBbCcD AABBC AaBbCcI AABBCCI Sc Replace Paste I Uva х, х* А A. Emphasis Heading 1 1 Normal 1 No Spac... Dictate Editor Reuse A Select v Files Clipboard a Font Paragraph Styles Editing Voice Editor |Reuse Files Q-3: a) Find all m > 1 such that 27 = 9 (mod m). [1 b) If A = |0 1 1 1| is a zero-one matrix, find A ^ Al2!. [1 b) Find the inverse of the encrypting function f (x) = (5 – x) mod 26, 0 < x < 25, and use it to decrypt the message "ZRQUBFNB". Page 5 of 7 819 words English (United States) R Accessibility: Unavailable D Focus 100% 8:37 AM e Type here to search 17°C ENG 4/11/2022 2 (8) <> 1>
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