Answer:
(3) ∠BCA ≅ ∠DAC
Step-by-step explanation:
BC and AD are parallel. AC is a transversal line passing through both lines. That means ∠BCA and ∠DAC are alternate interior angles. Therefore, they are congruent.
A
a³b < 0
If a > 0 then a³ > 0
and b < 0
then
a³b → + × - → -
that is a³b < 0
