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What is x→0+lim((9x)tan(5x+2π))? Provide your answer below:
If r(x)=log5(5x2+5x6cosx), find r′(x) Provide your answer below: r′(x)=
If f(x)=(5x)9x, find f′(2). Enter an exact answer in terms of a natural logarithm. Sorry, that's incorrect. Try again? f′(2)=9x(10)18[1+ln(10)]
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