Evaluate ∫₁⁸ (3 - y^(1/3) / y^(2/3)) dy

[rowdy3]

Evaluate each Definite integral.
∫ lower limit 1, upper limit 8. 3 - y^(1/3) / y^(2/3) ; dy
Here's a link if you have trouble understanding my problem. It's #24.
http://pic20.picturetrail.com/VOL1370/5671323/23643016/396407299.jpg
I did
∫(3*y^(-2/3) - y^(-1/3)) dy from 1 to 8

9*y^(1/3) - 3/2*y^(2/3) eval. from 1 to 8

= 9(2) - 6 - 9 + 3/2

= 3 + 3/2 = 9/2

 

[Undoubtedly0]

Greetings! Good work, your answer is correct.