need these proofs .( level bachelors) Watch

tweety1991
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#1
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kindly post these proofs
1.grad(F.G) = F(curlG) + G(curlF) + (F.grad)G + (G.grad)F
2.grade . ((r cross a) cross b)= -2B.A
in que2 r,A,B ARE VECTORS
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Kvothe the Arcane
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(Original post by tweety1991)
kindly post these proofs
1.grad(F.G) = F(curlG) + G(curlF) + (F.grad)G + (G.grad)F
2.grade . ((r cross a) cross b)= -2B.A
in que2 r,A,B ARE VECTORS
Please refer to this.
Have you tried elsewhere? DrMaths, Stackexchange maths and similarly themed sites often have a host of proofs available.
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tweety1991
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no
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Liamnut
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(Original post by tweety1991)
no
Try them
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tweety1991
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give me links
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WhiteGroupMaths
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There is something called Google in case you aren't aware.

Peace.
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tweety1991
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i know dear. i searched it from many sites but didnt found anywhere thats y asked for help......and i didnt ask merely you.............
(Original post by WhiteGroupMaths)
There is something called Google in case you aren't aware.

Peace.
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Noble.
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(Original post by tweety1991)
i know dear. i searched it from many sites but didnt found anywhere thats y asked for help......and i didnt ask merely you.............
You didn't look properly then. It's a basic property of div, grad, curl:

http://math.stackexchange.com/questi.../501237#501237
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tweety1991
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thanks noble i got it.......
(Original post by Noble.)
You didn't look properly then. It's a basic property of div, grad, curl:

http://math.stackexchange.com/questi.../501237#501237
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Smaug123
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(Original post by tweety1991)
kindly post these proofs
1.grad(F.G) = F(curlG) + G(curlF) + (F.grad)G + (G.grad)F
2.grade . ((r cross a) cross b)= -2B.A
in que2 r,A,B ARE VECTORS
They're easily proved using suffix notation (and/or considering them componentwise).
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WhiteGroupMaths
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(Original post by tweety1991)
i know dear. i searched it from many sites but didnt found anywhere thats y asked for help......and i didnt ask merely you.............
Oh yes I am SURE you did search high and low. Left and right too probably.

Peace.
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