Using a substitution I changed

\\\\int_1^2 (cos((\\\\pi )/(x)))/(x^(2))dx

into

\\\\int_a^b kcos(u)du

\ What was my

u

?\ What was my

du

?\ HINT: be sure to include

dx

\ What was my new lower limit

a=

\ HINT: turn the lower limit into a

u

value\ What was my new upper

\\\\lim_()itb=

\ What constant shows up after you do the substitution

k=

\ Evaluate

\\\\int_1^2 (cos((\\\\pi )/(x)))/(x^(2))dx=

Using a substitution I changed 12x2cos(x)dx into abkcos(u)du What was my u ? What was my du ? HINT: be sure to include dx What was my new lower limit a= HINT: turn the lower limit into a u value What was my new upper limitb= What constant shows up after you do the substitution k= Evaluate 12x2cos(x)dx=