Question

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Answer 1

Step-by-step explanation:

a+b+c = 0

a = -b-c

ca = -bc - c²

2b² + ca = b² - c² + b² - bc

= - (b-c)(a-b)

lly, 2a² + bc = -(a-b)(c-a) and 2c² + ab = -(c-a)(b-c)

Now LHS = -a²/(a-b)(c-a) - b²/(b-c)(a-b) - c²/ (c-a) (b-c)

now by LCM and multiplication

= -{a²b-a²c+b²c-ab²+ac²-bc² / - (a²b-a²c+b²c -ab² + ac² - bc²)]

= 1

Answer 2

$\huge\red{Answer}$

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