Q. f(x)=ln (12x-5/9x-2)(adsbygoogle = window.adsbygoogle || []).push({});

So by using the chain rule, i can get:

(-4/3)((9x-2)^{2}/(12x-5)^{2})

and by using the quotient rule, i can get the final answer, which is:

(2(-36x-8)(-36x-15)^{2}-2(-36x-15)(-36x-8)^{2})

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(-36x-15)^{4}

The answer that i got here is wrong, but i don't know, why?

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# Q. f(x)=ln (12x-5/9x-2)So by using the chain rule, i can

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