Question

Answer 1

a: ĐKXĐ: 2x>=0

=>x>=0

b: ĐKXĐ: x-1>=0

=>x>=1

c: DKXD: x+1>0

=>x>-1

d: ĐKXĐ: 3x-6>=0

=>x>=2

e: DKXĐ: x-2>=0

=>x>=2

f: ĐKXĐ: x+1>=0

=>x>=-1