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Vijay Singh chauhan Asked a Question
March 25, 2022 8:50 pmpts 30 pts
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  • Navdeep goyal 1 Best Answer
    A grad f(r) = f'(r) der r = f'(r) r/|r| r= xi+yj+zk r²=x²+y²+z² Partially differential wrt x 2r$r/$x=2x $r/$x=x/r
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