Question

please answer fast!! ​

Answer 1

Answer:

Both sets are empty

Step-by-step explanation:

1) x^2 =4. 3x=9

X=2,-2. x=3

There is no common answer in both eqn. Thats why they are empty sets

2) no triangle will ever form if the sum of its three angle is less than 180

Thats why empty