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Math
Goltidal

If u= tan^_1 xy/square root of 1+x^2+y^2 then show that dul^2u/dulxduly​

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Answer:
  1. gidjdgdjbgdjnd HD HD vhjndhdjdnjdnc dvdh gdhdjb xjxnxhd jdndbodnshd HD be jd vhf jd
  2. d bj djdnd jd dhdjdknfjdkd d dudgdidndu. gdjdnhd is no.
  3. xdhctdgvubutzrcbh vfhcehojvf. .nvjn
  4. bknfgigfvjjnm.. jgk
  5. ginvgbnm
  6. thanks
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