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Q.  Show that the ellipse x^2/4+ y^2/9= 1 in R2 is connected, and show that the function...

Q.  Show that the ellipse x^2/4+ y^2/9= 1 in R2 is connected, and show that the function f(x, y) = 3 x^3− 5y^3 − 4 has a zero on the above ellipse.

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