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If Delta=|{:(1,bc,a),(1,ca,b),(1,ab,c):}...

If `Delta=|{:(1,bc,a),(1,ca,b),(1,ab,c):}|`, then minor of element ab is :

A

`a-b`

B

`c(b^(2)-c^(2))`

C

`b-a`

D

`c(a^(2)+b^(2))`

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Delta = |(1//a,1,bc),(1//b,1,ca),(1//c,1,ab)|=

|[1,bc,a(b+c)],[1,ca,b(c+a)],[1,ab,c(a+b)]|=0

Find the minor and co-factor of each element of the first column of the following determinants : |{:(1,a,bc),(1,b,ca),(1,c,ab):}| Hence or otherwise evaluate them.

(1)/(bc)+(1)/(ca)+(1)/(ab)=

Delta=det[[1,a,bc1,b,ca1,c,ab]]

If Delta_(1) = |(1,1,1),(a,b,c),(a^(2),b^(2),c^(2))|, Delta_(2) = |(1,bc,a),(1,ca,b),(1,ab,c) | , then