Answer:
x=-1 or x=-3/2
Step-by-step explanation:
Answer:
5)
8, 6, 4, 2= 67°
5,7,1,3= 113°
6) not sure about this one!
Answer:
3*3*3*3*3=243
Step-by-step explanation:
It is self explanatory
Answer:
f = - 1
Step-by-step explanation:
f - 6 = f + 8
f - 6 = - (f + 8)
f ∈ ∅
f - 6 = - (f + 8)