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Quick Higher Derivative Problem
find y''' if y=(2x+3)^1/2 (or the square root of 2x+3)
the answer in the book is 3(2x+3)^-5/2 but I can't seem to arrive at this, my number where the first 3 is located is different.
Calc midterm tomorrow (and then final tues.!) and I hate learning stuff like this all in one day 
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I know not how I may seem to others, but to myself I am but a small child wandering upon the vast shores of knowledge, every now and then finding a small bright pebble to content myself with. [Plato]
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