LOGARITHMS 1H

Find x if Log_x 15625 = 6

Solution

Log_x 15625 = 6

15625 = x⁶ . [changing into exponential form]

5⁶ = x⁶ .

5⁶ = x⁶ .    [ cancelling the powers]

x = 5

Hence x = 5

TRY THIS..................

NECTA F-IV, 1999 QN. 3b (ii)

Find x if Log_x32 = 5