Grade 10Algebra
Let a be a complex number such that |a| = 1. If the az^2 + z + 1 = 0 has a pure imaginary root, then tan(arg a) = ?
a)(sqrt(5) - 1)/2
b)(sqrt(5) + 1)/2
c)sqrt((sqrt(5) - 1)/2)
d)sqrt((sqrt(5) + 1)/2)
Let a be a complex number such that |a| = 1. If the az^2 + z + 1 = 0 has a pure imaginary root, then tan(arg a) = ?
a)(sqrt(5) - 1)/2
b)(sqrt(5) + 1)/2
c)sqrt((sqrt(5) - 1)/2)
d)sqrt((sqrt(5) + 1)/2)
