Question
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Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसंकल्पना:
(x, y) = (a, b) के लिए परिभाषित एक फलन f(x, y) को (x, y) = (a, b) पर निरंतर कहा जाता है यदि:
i) f(a, b) = (x, y) = (a, b) पर f(x, y) का मान परिमित है।
ii) फलन f(x, y) की सीमा मौजूद है जैसे (x, y) → (a, b) और (x, y) = (a, b) पर f(x, y) के मान के बराबर है
ध्यान दें:
किसी फलन को किसी बिंदु पर अवकलनीय होने के लिए, यह उस बिंदु पर भी निरंतर होना चाहिए।
गणना:
दिया हुआ:
फलन f(x, y) निरंतर होने के लिए:
f(a,b) = f(0,0) ⇒ 0 (दिया गया)
fx(0, 0) =
fy(0, 0) =
∵ the limit value is defined and function value is 0 at (x,y) = (0,0), ∴ the function f(x,y) is continuous.
Hence, Option 2, 3 & 4 all are correct
Hence, Option 1 is not correct
Hence, The Correct Answer is option 1.
Last updated on May 9, 2025
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