how do you do given f(y1,y2) - 6(1-y2) for 0<y1<y2<1
find P(Y1<3/44, Y2>1/2)
can i know the range for double integrals?
Have you drawn the region defined by 0<y1<y2<1? And then, have you drawn inside it the region defined by y2 > 1/2 and y1 < 3/44 (it's a very simple region and makes the limits of integration you need to use crystal clear)?
(Other things you should do for practice include checking that the given pdf is valid).