Question

f(y)=sqrt(7y)-sin(1+cosy)... need the derivitive of this one and i dont know where im going wrong any help?

Answer 1

hey, how's it going?

Answer 2

hey can you help me?

Answer 3

sure, where are you getting stuck?

Answer 4

yes i need to find the deriv. of that function

Answer 5

i know to do the chain rule for the second term.. what about the first term

Answer 6

sqrt means exponent is 1/2, so the first term is (7y)^1/2, can you do the deriv from there?

Answer 7

ya i got (7/2)y^(-1/2)?

Answer 8

good

Answer 9

isnt there a chain rule applied to that term though?

Answer 10

nevermind i figured it out.. thanks any