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The condition which a second order partial differential equation must satisfy to be elliptical is

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The condition which a second order partial differential equation must satisfy to be elliptical is

(a) b^2-ac=0.

(b) True

(c) False

I have been asked this question in an internship interview.

Question is taken from Solution of Second Order P.D.E. topic in chapter Partial Differential Equations of Engineering Mathematics

1 Answer

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Correct option is (b) True

To explain: The condition for a second order partial differential equation to be elliptical is given by, b^2-ac<0.

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