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Misalkan medan skalar \$$f \$$ memenuhi \$$\\mathbf{F}=\\nabla f\$$ dengan \$$\\mathbf{F}=(1+xy)e^{xy}\\,\\mathbf{i}+(e^y+x^2e^{xy})\\,\\mathbf{j} \$$.

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Jika \$$f(0,0)=\\var{k} \$$, maka \$$f(\\var{a},\\var{b})=\\ldots\$$.

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