5)
log₀,₃ (10/3) = log₍₃/₁₀₎ ((3/10)⁻¹) = -1
7)
2⁴⁽ˣ⁻⁹⁾ = 2⁻¹
2⁴ˣ⁻³⁶=2⁻¹
4x-36=-1
4x=-1+36
4x=35
x=35/4
x=8.75
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Answers & Comments
5)
log₀,₃ (10/3) = log₍₃/₁₀₎ ((3/10)⁻¹) = -1
7)
2⁴⁽ˣ⁻⁹⁾ = 2⁻¹
2⁴ˣ⁻³⁶=2⁻¹
4x-36=-1
4x=-1+36
4x=35
x=35/4
x=8.75