- #1
vande060
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Homework Statement
I have to solve this integral
S cos(x^1/2)dx
where S is the integral symbol
Homework Equations
The Attempt at a Solution
the book tells me to use substitution and then integrate by parts
so i say u = x^1/2
du = 1/2*x^-1/2
then i can write 2 S (cos(u)du)/ x^1/2
where S in the integral sign
from here i think i can substitute the x^1/2 in the denominator by u because of the definition u = x^1/2
after the last substitution my integral would look like 2 S cos(u)/u
is this even close to right