for question 6b, i did it differently to te=he MS but still got the correct answer. Just wondering if someone could see if i did it correctly. I just used that formula and that's it, but the MS apparently did it differently.
for question 6b, i did it differently to te=he MS but still got the correct answer. Just wondering if someone could see if i did it correctly. I just used that formula and that's it, but the MS apparently did it differently.
Thank you
I believe so, the markscheme may have done it different because the equation of the plane isnβt in the form required for your equation - if your method gets the same answer for c) and d), then Iβd assume it does work
(Must admit, Iβve never seen that equation before! What exam board do you do?)
I believe so, the markscheme may have done it different because the equation of the plane isnβt in the form required for your equation - if your method gets the same answer for c) and d), then Iβd assume it does work
(Must admit, Iβve never seen that equation before! What exam board do you do?)
One word of caution: That formula gives an unsigned quantity - which is fine for a point to a plane.
If you wanted to find the distance between two planes, you might think to find the distance from the origin of each and subtract, but this could lead to an error as you might need to add, depending on whether the origin is between the two planes or not.
One word of caution: That formula gives an unsigned quantity - which is fine for a point to a plane.
If you wanted to find the distance between two planes, you might think to find the distance from the origin of each and subtract, but this could lead to an error as you might need to add, depending on whether the origin is between the two planes or not.