Question

Wyznacz dziedzine funkcji:
f(x)=2x
f(x)=3
f(x)=x^2+7x
f(x)=x^3-1

f(x)=x+1/2
f(x)=3/x-5
f(x)=3x-5/x-√2
f(x)=x+√/2√3-x
f(x)=x+√x
f(x)=√x-√3
f(x)=√5-√x
f(x)=x^2+1+√2-√x

DAM NAJ PROSZE !!!

Answer 1

1 R

2 3

3 R

4 R

5 R

6 R-[0]

7 x>0

8 R

9 x>0

10 x>0

11x>0

12x>0