J jsap7 New member Joined Jan 27, 2022 Messages 1 Jan 27, 2022 #1 How can I find 2 vectors from the dot products of themselves. Let p and q be vectors in R3. Suppose p * p = 36, q * q = 25 and the angle between them is pi / 6. Find p * q
How can I find 2 vectors from the dot products of themselves. Let p and q be vectors in R3. Suppose p * p = 36, q * q = 25 and the angle between them is pi / 6. Find p * q
D Deleted member 4993 Guest Jan 27, 2022 #2 jsap7 said: How can I find 2 vectors from the dot products of themselves. Let p and q be vectors in R3. Suppose p * p = 36, q * q = 25 and the angle between them is pi / 6. Find p * q Click to expand... Use the fact that: If A and B are two coplanar vectors A . B = ||A|| * ||B|| * cos(Θ) ................. where Θ is the angle between the two vectors. Continue.... Please show us what you have tried and exactly where you are stuck. Please follow the rules of posting in this forum, as enunciated at: READ BEFORE POSTING Please share your work/thoughts about this problem.
jsap7 said: How can I find 2 vectors from the dot products of themselves. Let p and q be vectors in R3. Suppose p * p = 36, q * q = 25 and the angle between them is pi / 6. Find p * q Click to expand... Use the fact that: If A and B are two coplanar vectors A . B = ||A|| * ||B|| * cos(Θ) ................. where Θ is the angle between the two vectors. Continue.... Please show us what you have tried and exactly where you are stuck. Please follow the rules of posting in this forum, as enunciated at: READ BEFORE POSTING Please share your work/thoughts about this problem.
