For some reason I am struggling with these problems. I am lost as a goose trying to fly south for the winter!(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

9^(5-x2)

and

another derivative problem using chain rule

r/square root of the whole term r^2+5

2. Relevant equations

1st equation= d/dx= a^x ln a

2nd equation=

3. The attempt at a solution

1st one= -9^(5-x^2) 2x log (9)

2nd one= i am stuck at square root of (r^2 +5) + square rt (r^2+5) -r^2 all divided by sq root of (r^2+5) all divided by (r^2 +5)^2

any help would be greatly appreciated!!!

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# 2 chain rules problems

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