The dot and cross product

[Alicanhadi]

Hi everyone.... Please!! Help me ... İ waste my days for it. Please wright handwrighting... Really İ need

İf
a'=( b x c ) / (a• b x c)
b'=(c x a )/ (a• b x c)
c'=(a x b)/ (a• b x c)

Prove that :

a= (b' x c')/ (a'• b' x c')
b=(c'x a')/ (a'• b' x c')
c=(a'x b')/ (a'• b' x c')

Please send me e-mail Solution as a picture

exelilov1@std.qu.edu.az

 

[pka]

Hi everyone.... Please!! Help me ... İ waste my days for it. Please wright handwrighting... Really İ need

İf
a'=( b x c ) / (a• b x c)
b'=(c x a )/ (a• b x c)
c'=(a x b)/ (a• b x c)

Prove that :

a= (b' x c')/ (a'• b' x c')
b=(c'x a')/ (a'• b' x c')
c=(a'x b')/ (a'• b' x c')

Please send me e-mail Solution as a picture

exelilov1@std.qu.edu.az

As as written it makes no sense. A number cannot be crossed with a vector.
Do you mean, \(\displaystyle \vec{a}\cdot(\vec{b}\times\vec{c})~?\).
If so, please edit the post.