Solve logarithms without the use of calculators?

Question

a)Given that log base7 3=0.5646 and logbase7 2=0.3562,without using calculators find the value of logbase7 1/12

b)Given that logbase7 2=0.3562 and logbase7 3=0.5646,without using calculators find the value of logbase7 4/21

Answer 1

Solve:Inx+Inx^2=3

 

Answer 2

log 56 + log 4 as single equivalent expression

Answer 3

if log 3=.33      log 5=.52     log 8=.71
what log .6 equal without calculators