Question

If a and b are the roots of the polynomial f(x)= x²+x+1, 1/a+1/b is equal to. (a) 1 (b) -1 (c) 0 (d) none of these​

Answer 1

Answer:

a+b = -B/A = -1

ab = C/A = 1

1/a + 1/b = a+b/ab = -1/1 = -1

therefore the answer is option B