4.02: Logarithmic equations

0606/11/M/J/26 — Question 8 · 8 marks

(a)
Evaluate \(\lg10000\).
[1]
(b)
Solve \(\log_2(\log_3x)=2\).
[3]
(c)
Solve \(\log_x5=\log_5(x^4)\).
[4]