LOGARITHMS 1G

Find x if Log_x0.0000001 = -7

solution

Log_x0.0000001 = -7

0.0000001  = x^-7 . 

10^-7 = x^-7 . [since 0.0000001  = 10^-7  ]

10⁷ = x⁷ .  { equal powers cancel out}

x = 10

Hence x = 10

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

Find x if Log_x0.000000001 = -9