2527 The transformation x = au, y = bv (a > 0,b > 0) canbe rewritten as x/a = u, y/b =
Chapter 14, Problem 25(choose chapter or problem)
The transformation \(x=a u, y=b v(a>0, b>0)\) can be rewritten as \(x / a=u, y / b=v\), and hence it maps the circular region
\(u^{2}+v^{2} \leq 1\)
into the elliptical region
\(\frac{x^{2}}{a^{2}}+\frac{y^{2}}{b^{2}} \leq 1\)
\(\int \int_{R} \sqrt{16 x^{2}+9 y^{2}} d A\) where \(R\) is the region enclosed by the ellipse \(\left(x^{2} / 9\right)+\left(y^{2} / 16=1\right)\).
Equation Transcription:
Text Transcription:
x=au, y=bv(a>0,b>0)
x/a=u,y/b=v
u^2+v^2 leq 1
x^2 /a^2 + y^2 /b^2 leq 1
integral integral_R sqrt 16x^2 + 9y^2 dA
R
(x^2 /9) + (y^2 /16 = 1)
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