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###### Vijay posted an Question
July 21, 2022 • 20:40 pm 30 points
• CSIR NET
• Mathematical Sciences

## 48. the partial ditierential equations u*(x * yu,+4j", + (sinx)u, = 0 is (a) elliptic in {(x, y): x e r, y e r (c) parabolic for some {(x, y): x e r, y e r} (b)

48. The partial ditierential equations u*(x * yu,+4J", + (sinx)u, = 0 is (A) Elliptic in {(x, y): x e R, y e R (C) Parabolic for some {(x, y): x E R, y e R} (B) Hyperbolic in {(x, y):xy > 0} (D) Eliptic in {(x, y): xy < 0}

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• ##### Pankaj dwivedi Best Answer

Check the answer Option (b),(c), and (d) is correct

check b,c,d

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