Question

for X,Y€Z, show that the relation R defined by, XRy if x-y is divisible by 3 is an equivalence relation​

Answer 1

Answer:

Heat can make inflammation significantly worse. Ice can aggravate symptoms of tightness and stiffness; it can also just make any pain worse when it's unwanted. Both ice and heat are pointless or worse when unwanted: icing when you're already shivering, or heating when you're already sweating.