Can the natural logarithm, $ln$, have an exponent?












1












$begingroup$


$$f(x)=ln^3(x^2+tan(3x))$$



This is a question from a past final exam. I need to derive this function and I have one simple question. Is it possible for that natural log to have its own exponent. How would I even go about deriving this problem seeing as how $frac{d}{dx}(ln(x)) = frac{1}{x}$ ?










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  • $begingroup$
    Yes it's possible, you just use the chain rule several times.
    $endgroup$
    – DMcMor
    Apr 29 '17 at 1:52
















1












$begingroup$


$$f(x)=ln^3(x^2+tan(3x))$$



This is a question from a past final exam. I need to derive this function and I have one simple question. Is it possible for that natural log to have its own exponent. How would I even go about deriving this problem seeing as how $frac{d}{dx}(ln(x)) = frac{1}{x}$ ?










share|cite|improve this question











$endgroup$












  • $begingroup$
    Yes it's possible, you just use the chain rule several times.
    $endgroup$
    – DMcMor
    Apr 29 '17 at 1:52














1












1








1





$begingroup$


$$f(x)=ln^3(x^2+tan(3x))$$



This is a question from a past final exam. I need to derive this function and I have one simple question. Is it possible for that natural log to have its own exponent. How would I even go about deriving this problem seeing as how $frac{d}{dx}(ln(x)) = frac{1}{x}$ ?










share|cite|improve this question











$endgroup$




$$f(x)=ln^3(x^2+tan(3x))$$



This is a question from a past final exam. I need to derive this function and I have one simple question. Is it possible for that natural log to have its own exponent. How would I even go about deriving this problem seeing as how $frac{d}{dx}(ln(x)) = frac{1}{x}$ ?







derivatives logarithms exponential-function






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edited Apr 29 '17 at 8:30









projectilemotion

11.4k62141




11.4k62141










asked Apr 29 '17 at 1:51









M.BucciacchioM.Bucciacchio

476




476












  • $begingroup$
    Yes it's possible, you just use the chain rule several times.
    $endgroup$
    – DMcMor
    Apr 29 '17 at 1:52


















  • $begingroup$
    Yes it's possible, you just use the chain rule several times.
    $endgroup$
    – DMcMor
    Apr 29 '17 at 1:52
















$begingroup$
Yes it's possible, you just use the chain rule several times.
$endgroup$
– DMcMor
Apr 29 '17 at 1:52




$begingroup$
Yes it's possible, you just use the chain rule several times.
$endgroup$
– DMcMor
Apr 29 '17 at 1:52










1 Answer
1






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5












$begingroup$

Actually, this can be rewritten as $(ln(x^2+tan(3x)))^3$ just like how trig functions like $sin^2(x)$ are analogous to saying $(sin(x))^2$






share|cite|improve this answer











$endgroup$













  • $begingroup$
    oh gosh, I thought it might be something like that. It's confusing since not once has my teacher or the textbook shown it like that .
    $endgroup$
    – M.Bucciacchio
    Apr 29 '17 at 1:55











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1 Answer
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1 Answer
1






active

oldest

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active

oldest

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active

oldest

votes









5












$begingroup$

Actually, this can be rewritten as $(ln(x^2+tan(3x)))^3$ just like how trig functions like $sin^2(x)$ are analogous to saying $(sin(x))^2$






share|cite|improve this answer











$endgroup$













  • $begingroup$
    oh gosh, I thought it might be something like that. It's confusing since not once has my teacher or the textbook shown it like that .
    $endgroup$
    – M.Bucciacchio
    Apr 29 '17 at 1:55
















5












$begingroup$

Actually, this can be rewritten as $(ln(x^2+tan(3x)))^3$ just like how trig functions like $sin^2(x)$ are analogous to saying $(sin(x))^2$






share|cite|improve this answer











$endgroup$













  • $begingroup$
    oh gosh, I thought it might be something like that. It's confusing since not once has my teacher or the textbook shown it like that .
    $endgroup$
    – M.Bucciacchio
    Apr 29 '17 at 1:55














5












5








5





$begingroup$

Actually, this can be rewritten as $(ln(x^2+tan(3x)))^3$ just like how trig functions like $sin^2(x)$ are analogous to saying $(sin(x))^2$






share|cite|improve this answer











$endgroup$



Actually, this can be rewritten as $(ln(x^2+tan(3x)))^3$ just like how trig functions like $sin^2(x)$ are analogous to saying $(sin(x))^2$







share|cite|improve this answer














share|cite|improve this answer



share|cite|improve this answer








edited Jan 7 at 10:15

























answered Apr 29 '17 at 1:53









rb612rb612

1,8481923




1,8481923












  • $begingroup$
    oh gosh, I thought it might be something like that. It's confusing since not once has my teacher or the textbook shown it like that .
    $endgroup$
    – M.Bucciacchio
    Apr 29 '17 at 1:55


















  • $begingroup$
    oh gosh, I thought it might be something like that. It's confusing since not once has my teacher or the textbook shown it like that .
    $endgroup$
    – M.Bucciacchio
    Apr 29 '17 at 1:55
















$begingroup$
oh gosh, I thought it might be something like that. It's confusing since not once has my teacher or the textbook shown it like that .
$endgroup$
– M.Bucciacchio
Apr 29 '17 at 1:55




$begingroup$
oh gosh, I thought it might be something like that. It's confusing since not once has my teacher or the textbook shown it like that .
$endgroup$
– M.Bucciacchio
Apr 29 '17 at 1:55


















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