How to do this a=2i+3j-5k,b=mi+nj+12k and axb=0 then (m,n)?

its of inter first year question or:its of inter first year questionor:Firstly find m,Using the scalars of b to find (m,n). And axb=0Now, b=m+n+12Same

its of
inter first year question

or:its of inter first year question

or:Firstly find m,Using the scalars of b to find (m,n). And axb=0Now, b=m+n+12Same as, 0=m+n+12 -------eq .1Making m the subject,m=-(n+12)= -n-12Putting m into eq .1-n-12+n+12=0Therefore, m=0Putting m into eq .1 0+n+12=0n=-12

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