Question

at http://tutorial.math.lamar.edu/Classes/DE/Substitutions.aspx in 3rd example the integration part is confusing me that where has this 1/4 come from?

Answer 1

solved it thanks anyway @ all

Answer 2

see the last statement it will be clear to u

Answer 3

in order to keep one on above the fraction 1/4 has been taken out

Answer 4

see the last statement it will be clear to ur query

Answer 5

what last statement?

Answer 6

@Rohangrr