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".
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
Problem 1RQ
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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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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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