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April 28, 2024, 05:38:26 am
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Author Topic: Exponential Inequations  (Read 752 times)  Share 

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dudbomber

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Exponential Inequations
« on: February 14, 2018, 08:32:52 pm »
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G'day everybody, I found these exponential inequations Q20 and Q21 on the Extension 1 Fitzpatrick. I'm wondering, other than graphically solving this question is/are there other methods?
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jamonwindeyer

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Re: Exponential Inequations
« Reply #1 on: February 14, 2018, 10:29:33 pm »
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Quote from: dudbomber on February 14, 2018, 08:32:52 pm
G'day everybody, I found these exponential inequations Q20 and Q21 on the Extension 1 Fitzpatrick. I'm wondering, other than graphically solving this question is/are there other methods?

G'day! Welcome to the forums! ;D those are in fact quadratic inequalities in disguise! If in Q20 for example, you let \(m=2^x\), look what happens:



Since you got through the earlier questions, that should be a cinch for you! And Q21 is very similar ;D
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