Suppose logb x 2 and logb 3 7 Evaluate logb b3 x9SolutionG
Suppose log_b x = 2 and log_b 3 = 7. Evaluate log_b (b^3 x/9).
Solution
Given : logbx = 2 and ; logb3 = 7
logb{b(x)^1/3/9 }
logbb + logb(x)^1/3 - logb(9) ( Expanding the terms using property : loga*b/c = loga +logb - logc )
1 + (1/3) logbx - logb(3)^2 ( Use log property loga^x= xloga )
Sustitute the given values in question:
1 + (1/3)(2) - 2 logb(3)
1+ 2/3 - 2*7
= ( 3+2 -42)/3
= -37/3
