.. abhi padha quest xd kitna pehla ka hai yeh wtf

Bro range poocha he domain nahi

so (-∞,0] U [0,∞) - {-3,-4}

You can have any value, but for function to have real values, it can't have -3 or -4

R is not the answer :)

That's implied

R includes -3 aswell, which makes the denominator 0, which is not defined :)

R