Thread: Double Integral

1. Double Integral

Could you please help me on this?

2 2-x
∫ ∫ .75 x dy dx
1 0

The study workbook solution is 1/2 but I cannot get this result. Instead I get 1/8 and I don't know what I am doing wrong.

2. Originally Posted by Nikos
Could you please help me on this?

2 2-x
∫ ∫ .75 x dy dx
1 0

The study workbook solution is 1/2 but I cannot get this result. Instead I get 1/8 and I don't know what I am doing wrong.
1/2 is the correct answer. To know what you're doing wrong we will need to see your working.

3. Thank you! I found my mistake. When I was integrating the first integral I was supposed to consider .75x as a constant, instead I was integrating it as a variable. I lost 2 hours on this stupid mistake, but I think I learned my lesson now! Thanks again!