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OpenStudy (anonymous):
show that div (A+B)=div (A) + div(B)
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OpenStudy (anonymous):
I have no idea how to start expanding this
OpenStudy (welshfella):
never seen anything like that before what does div mean?
OpenStudy (anonymous):
divergence. its done using vectors.
OpenStudy (welshfella):
oh ok - sorry can't help with that. if i've ever done that in past i've forgotten it!
OpenStudy (anonymous):
ok. thanks
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OpenStudy (anonymous):
I found the answer here https://www.yumpu.com/en/document/view/9020526/formulae-involving-vector-identities-with-proofs-nabla-formulae-
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