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  • 34 votes cast
Dec
14
accepted How to find volume of solid using double integrals?
Dec
14
revised How to find volume of solid using double integrals?
added 10 characters in body
Dec
14
comment How to find volume of solid using double integrals?
@user160738 They are parabolic cylinders, I will edit to clarify. Also that is not the answer I'm looking for.
Dec
14
comment How to find volume of solid using double integrals?
@user160738 The solid is not a cylinder but it is bounded by two cylinders and two planes.
Dec
14
asked How to find volume of solid using double integrals?
Dec
14
comment How to evaluate this definite double integral?
(+1) Thanks, this helped me see my mistake. I didn't properly distribute the negative sign when evaluating the inner integral.
Dec
14
comment How to evaluate this definite double integral?
Why does the range of the inner integral change to $y^2,0$ instead of $y^2,y^2-y$ - I thought you put the original range of integration into the u substitution equation?
Dec
14
accepted How to evaluate this definite double integral?
Dec
14
comment How to evaluate this definite double integral?
I got -8, I must have made an arithmetic error or something!
Dec
14
asked How to evaluate this definite double integral?
Dec
11
accepted Simple directional derivative question
Dec
8
comment Simple directional derivative question
@charlestoncrabb Thanks, got it.
Dec
8
awarded  Teacher
Dec
8
answered Simple directional derivative question
Dec
8
revised Simple directional derivative question
added 2 characters in body
Dec
8
asked Simple directional derivative question
Nov
8
accepted Questions about how to input both odds and payoff into expected value function
Nov
6
asked Questions about how to input both odds and payoff into expected value function
Oct
31
comment How many permutations of letters are in “MATHISFUN” without words MATH , IS , FUN
@cr001 How are the intersects being calculated?
Oct
25
accepted Transforming and identity for $n \choose k$ with the “committee and chair” trick