Select which ones of the following equalities are correct and would be useful to establish that log₂x and log₁₀x are of the same order: Check all that apply.
a) log₂x = log₁₀x / log₁₀2
b) log₂x = log₁₀x / log₁₀2
c) log₂x = log₁₀x * log₁₀2
d) log₂x = log₁₀x * log₁₀2