Question

derive sqrt(sqrt(t+1)+1)

Answer 1

Do you mean differentiate?

Answer 2

f'(x)

Answer 3

You should learn the proper jargon for derivatives, but nonetheless....
y = sqrt(sqrt(t+1)+1) = ((t+1)^1/2 + 1)^1/2

Answer 4

From here its just the power rule and the chain rule.
y = ((t+1)^1/2 + 1)^1/2

Answer 5

so 1/2((t+1)^1/2 +1 )^(-1/2) x 1/2(t+1)^(-1/2) is this correct?

Answer 6

yes, looks good to me.

Answer 7

Sorry, I lost my connection. Just to tell you thank you very much.