I have an issue on 23:10. You have decided to set x and y to zero, but i have made y and z equal to zero and the distance is different now. My answer is 71/sqt(30) which is completely different asnwet than yours one? I think this could be a problem..
you must have made a mistake somewhere, i just did it setting y and z equal to zero, and i got the point (3/2, 0, 0). from there the vector PQ=. the dot product of n and PQ is -30/2+10-1 which becomes -15+10-1 which is -6, the absolute value being 6.
Thank you very much
Love this video Ms.Ruddy. thank you very much. 😁
At 7:43 and 9:40, you said "cross product," but you actually mean the "dot product," right?
Ya
Yea. Haha i totally messed that up too. Happens to the best of us. If only our brains and mouths would sync.
I have an issue on 23:10. You have decided to set x and y to zero, but i have made y and z equal to zero and the distance is different now. My answer is 71/sqt(30) which is completely different asnwet than yours one? I think this could be a problem..
you must have made a mistake somewhere, i just did it setting y and z equal to zero, and i got the point (3/2, 0, 0). from there the vector PQ=. the dot product of n and PQ is -30/2+10-1 which becomes -15+10-1 which is -6, the absolute value being 6.