I need help with calculus III. I will attach a file of my review.

Question

venomblast · Answer

I am focus with section 1.1 on question 5 which is related to question 3

ganeshie8 · Answer

Notice that the given vectors are in 3 dimensions because they have 3 components

dan815 · Answer

do u uhh still need help?

venomblast · Answer

yes

venomblast · Answer

i did #3 already. $$vector(v)= (1,0,3)+t<-3,-10,1>$$
 How do we find the perpendicular line without using the dot product?

ganeshie8 · Answer

there wont be `the` perpendicular line in 3D
think geometrically : given a line, how many perpendicular lines can you draw ?

ganeshie8 · Answer

for example, what are the lines that are perpendicular to `z axis` ?

venomblast · Answer

i can draw infinite amount of lines in a 3-D space. trust me i can use the dot product but  of <a,b,c> and give a value to one of them. However I am avoiding the dot product and want to solve it a different way (like before learning dot products and advance techniques)