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using properties of determinats show that det(b 2 +c 2 a 2 a 2 ,b 2 c 2 +a 2 b 2 ,c 2 c 2 a 2 +b 2 )=4a 2 b 2 c 2 using properties of determinats show that det(b2+c2 a2 a2,b2 c2+a2 b2,c2 c2 a2+b2)=4a2b2c2
Using R1 R1-R2-R3 and taking 2 common out of R1, Now use R2 R2-R1 and R3R3-R1 to obtainand now expand from R1 to easily get the value as
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