Given that, y + t> 3 ⇒ 3t+ 7y > 21 7 11t > y + 11 > 7y ⇒ 11t - 7y > 0 11 9 t> 0 -t-11t+ 9y > -99 (4) -(1) (2) (3)

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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Good Day,

Would it be possible to show a bit more working for this part when rewriting these into standard form as i'm having a bit of trouble figuring out how it was done. 

Thanks

Given that, y +
t> 3 ⇒ 3t+ 7y > 21
7
11t >
y + 11 >
7y ⇒ 11t - 7y > 0
11
9
t> 0
-t-11t+ 9y > -99
(4)
-(1)
(2)
(3)
Transcribed Image Text:Given that, y + t> 3 ⇒ 3t+ 7y > 21 7 11t > y + 11 > 7y ⇒ 11t - 7y > 0 11 9 t> 0 -t-11t+ 9y > -99 (4) -(1) (2) (3)
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