Question

Substitution rule for indefinite integral?

Answer 1

hard to write integrals here without the latex working
what is the question?

Answer 2

Integral of 2^t/(2^t+3) using the substitution rule

Answer 3

u = 2^t
du = 2^t ln(2) dt
1/ln(2) du = 2^t dt
integrate
1/ln(u) integral of du/u

Answer 4

damn i am sorry, it is hard to write here
i means u = 2^t + 3
all the rest is correct though

Answer 5

there, that's better

Answer 6

Okay, and then replace the u at the end for the full answer?

Answer 7

yes

Answer 8

Thank you, I understand now

Answer 9

yw