Mymensingh higher secondary 2013#4

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samiul_samin
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Mymensingh higher secondary 2013#4

Unread post by samiul_samin » Mon Feb 18, 2019 12:48 am

$9^x-3^{x+1}=k$ this equation has one or more real roots . Then the values of $k$ can be write as $[c,b)$ . Find $c$.

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samiul_samin
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Re: Mymensingh higher secondary 2013#4

Unread post by samiul_samin » Mon Feb 18, 2019 8:57 am

Hint
Find the lower limit of the interval
Answer
$-\dfrac 94$

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