Question

please answer this question

Answer 1

x = ㏒12 
y = log4(2) x log 9 = log 100(10) x log 9 = $\frac{log9}{log 100}$ = log 100 (9) = log 10 (√9) = log 3
z = log 0.4

∴ x - y - z = log 12 - log 3 - log0.4 
= log 12 /3 - log 0.4
 = log 4 / 0.4 = log 10 = 1 (ANS)


∴ $13^{x-y-z}$ = 13^1 = 13 (ANS)