Ris the region which satisfies the following inequalities: x +y? 21, and (i) Sketch the region R. (1i) Calculate the integral R

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Ris the region which satisfies the following inequalities:
x+y s9
x +y 21, and
(i)
Sketch the region R.
(ii)
Calculate the integral
Hint: cos(2t) = cos? t- sin? t = 2 cos?t-1=1-2 sin? t
Transcribed Image Text:Ris the region which satisfies the following inequalities: x+y s9 x +y 21, and (i) Sketch the region R. (ii) Calculate the integral Hint: cos(2t) = cos? t- sin? t = 2 cos?t-1=1-2 sin? t
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