Question

log[log(x+4)]=0 what is value of x and how

Answer 1

Say \(\log(x+4)=y\), then \(\log y = 0 \implies e^0 = y \implies y = 1\)
Thus, \(\log(x+4)=1\), so \(e^1=x+4=\implies x=e-4\)

Answer 2

Oh wait actually, are you using log in base \(e\) or 10?

Answer 3

thanks bro i understand

Answer 4

log[log(x+4)-4]=0 then x=-4 how

Answer 5

o_O If you're in base \(e\), you should get \(e^5-4\). If you are in base 10, you should get \(10^5-4\).

Answer 6

In fact, if x=-4 here, you get \(\log(\log(-4+4)-4)=\log(\log(0)-4)\) and \(\log0\) is undefined