pls help me ,in this situation how much damage i take ?

situation 1:
I have 90 fire res and 0 cold res , and 100% cold dam taken as fire dam.
If i take 20000 cold damage, how much damage i actually take ?
situation 2:
I have 90 fire res and 50 cold res , and 100% cold dam taken as fire dam.
If i take 20000 cold damage(before mitigate), how much damage i actually take ?

In both cases it would just ignore your cold resistance and damage taken would be completely dependant on the fire resistance you have.
So 2000 damage

ty mate

Assuming the 75% cap and nothing else odd going on, you are going to take 5k.

Check the combat log... oh wait...