20. If 92m-n =} and 73m-2n = 49, the values of m and n are

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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20. If 92m-n
and 73m-2n
= 49, the values of m and n are
=
Use the following to answer questions 21 and 22.
2
4
-2
If X =
and Y
-3 4
-1
3
21. Find 3|X|+ 12
22. Find 2|Y|+ |X|
Transcribed Image Text:20. If 92m-n and 73m-2n = 49, the values of m and n are = Use the following to answer questions 21 and 22. 2 4 -2 If X = and Y -3 4 -1 3 21. Find 3|X|+ 12 22. Find 2|Y|+ |X|
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