Question

If a,bare the zeroes of x2+x+1 then 1/a+1/b=

Answer 1

Answer:

we know that

a+b = -1/1 [-(coefficient of x)/(coefficient of x^2) = -1

ab = 1/1 (coefficient of number / coefficient of a) = 1

$1 \: \: \: \: \: \: 1 \: \: \: \: \: \: \: \: \: \: \: \: \: a + b\\ - + \: - = \: \: \: \: \: \: \: - \\ a \: \: \: \: \: \: \: \: \: b \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: ab$

=> -1/1 = -1