Question

What is the derivative of T(p)=87.97+34.96 ln p + 7.91 p^1/2

Answer 1

I got T'(p)=0 + 34.961 p ln^p-1 + 3.955p^-1/2

Answer 2

You are going to have to present the original function clearer.

Is it T(p)=87.97+34.96*ln(p) + 7.91*p^1/2 ?

Answer 3

yes

Answer 4

okay, I am writing up a solution for you :)

Answer 5

thank you! I think I have it wrong

Answer 6

http://screencast.com/t/ltqEPHY1G0s

Answer 7

T'(p)=0+34.96/p+7.91(1.2)p^1.2-1
=34.96/p+9.492p^.2

Answer 8

^ @gomathi your original function is wrong. Which obviously led you to the wrong derivative

Answer 9

sorry the last termis P^1/2?
then 34.96/p+7.91(1/2)p^1/2-1
34.96/p+3.95p^-1/2
34.96+3.95/p^1/2

Answer 10

the derivative of any ln is reciprocal of that function

Answer 11

Thank you! i always forget the rules for ln

Answer 12

therefore lnp is 1/p

Answer 13

hope you know constant p0wer of any variable is given by power *p^power minus one
so p^1/2 is given by p ^1/2-1

Answer 14

yes

Answer 15

hope you follow the rules

Answer 16

i'll try :)