Hi, 1.How would you differentiate (6^x)log_4 (x)? Note that the underscore here indicates subscript here. 2. Solve for f'(x) given that : d/dx(f(4(x^5))=6(x^2) Please help! I have homework due! Thanks a lot.
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Originally Posted by sgupta Hi, 1.How would you differentiate (6^x)log_4 (x)? Note that the underscore here indicates subscript here. You will need to use the product rule here. But recall that: $\displaystyle \frac{d}{\,dx}\left[a^x\right]=a^x\ln a$ and $\displaystyle \frac{d}{\,dx}\left[\log_a x\right]=\frac{1}{x\ln a}$ Can you take this one from here? --Chris
Thanks,So this means.. The answer is ((6^x)/(xln4))+ log_4(x)((6^x)(ln6)) I assume this is right, since I have used the product rule as well as the formulae. But I keep getting an "Incorrect" on my webwork.. Help!
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