Question

determinants of |0 p-q p-r| |q-p 0 q-r| |r-p r-q 0| =
​

Answer 1

Explanation:

Performing C

1

→C

1

−C

2

,C

2

→C

2

−C

3

∣

∣

∣

∣

∣

∣

∣

∣

q−p

g−p

q−p

r−q

r−q

r−q

p−r

q−r

0

∣

∣

∣

∣

∣

∣

∣

∣

(q−p)(r−q)

∣

∣

∣

∣

∣

∣

∣

∣

1

1

1

1

1

1

p−r

q−r

0

∣

∣

∣

∣

∣

∣

∣

∣

=0 {∵ Two columns are identical}