- #1
- 51
- 0
I don't understand for integral ysin(xy)dx = -cos(xy) for a=1 b=2. I know sin's integral is cos, but I don't understand how to eliminated the y in the left equation so it become the right equation. Please help!
jkh4 said:I don't understand for integral ysin(xy)dx = -cos(xy) for a=1 b=2. I know sin's integral is cos, but I don't understand how to eliminated the y in the left equation so it become the right equation. Please help!
jkh4 said:what about this one?
how do you integrate x(y^2 - x^2)^(1/2)? my TA says the answer is (-1/3)((y^2 - x^2)^(3/2)) but i don't get where is the (-1/3) comes from...
jkh4 said:this is the process i got so far
(x^2/2)((y^2-x^2)^(3/2))/(3/2)(-1/x^2)
but one thing i don't understand, for the (-1/X^2), is this a proper intergral step?