use the substitution u = 2^x to find the exact value of
integral at the top it says 1 and at the bottom 0 then a fraction :
top bit = 2^x
bottom bit = (2^x = 1) squared
then in the middle at the end it says dx
use the substitution u = 2^x to find the exact value of
integral at the top it says 1 and at the bottom 0 then a fraction :
top bit = 2^x
bottom bit = (2^x = 1) squared
then in the middle at the end it says dx