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To solve the inequality involving logarithms with base , we will perform the following steps:
Let's go through the steps:
Step 1: Simplify both sides using the logarithm subtraction rule:
Left side:
Right side:
This gives us the inequality:
Step 2: Since is less than 1, the inequality sign flips when we remove the logarithms.
This gives:
Multiplying both sides by 3 to solve for :
Thus, , which simplifies to .
Since we assumed , the final solution is:
\( \log_{10}3+\log_{10}4= \)
Because , the logarithm function is decreasing. This means larger inputs give smaller outputs, so inequalities reverse when you remove the logarithm.
Use whenever you see subtraction between logarithms with the same base. This simplifies the inequality significantly!
Logarithms are only defined for positive arguments. Without x > 0, your solution might include invalid values that make the original equation undefined.
While possible, it's much harder! Combining logarithms first using the subtraction property gives you a cleaner inequality that's easier to solve and understand.
Substitute a test value from your solution range back into the original inequality. For example, try : both sides should satisfy the inequality relationship.
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