If a²=b+c,b²=c+a and c²=a+b,then the value of (1/1+a)+(1/1+b)+(1/1+c) is
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Step-by-step explanation:
a² = b + c
b² = c + a
c² = a + b
a² - b² = b - a => (a - b) (a + b) = b - a
=> a + b = -1 or a = b
1) a + b ≠ - 1 as c² is not negative, if c is a real number.
a = b => c² = 2 a
similarly, b = c => a² = 2 b (as b+c ≠ -1, as a² is non negative)
and c = a => b² = 2 a
so we get a = b = c = 2
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