P popjin Member Joined Feb 22, 2019 Messages 41 Gender Male HSC 2020 Dec 27, 2020 #1 Where am I going wrong here? Question: Given vector u = (-4cos30, 4sin30) and vector v = (6cos45, -6sin45) find projuv (projection of v onto u) in exact form Working:

Where am I going wrong here? Question: Given vector u = (-4cos30, 4sin30) and vector v = (6cos45, -6sin45) find projuv (projection of v onto u) in exact form Working:

E Eagle Mum Member Joined Nov 9, 2020 Messages 71 Gender Female HSC N/A Dec 27, 2020 #2 Are you supposed to be dividing or multiplying by 16(?)

Etho_x Well-Known Member Joined Jun 21, 2019 Messages 627 Location somewhere in the universe Gender Male HSC 2021 Dec 27, 2020 #3 Eagle Mum said: Are you supposed to be dividing or multiplying by 16(?) Click to expand... Dividing if |u|^2 is 16

Eagle Mum said: Are you supposed to be dividing or multiplying by 16(?) Click to expand... Dividing if |u|^2 is 16

Etho_x Well-Known Member Joined Jun 21, 2019 Messages 627 Location somewhere in the universe Gender Male HSC 2021 Dec 27, 2020 #4 popjin said: Where am I going wrong here? Question: Given vector u = (-4cos30, 4sin30) and vector v = (6cos45, -6sin45) find projuv (projection of v onto u) in exact form Working: View attachment 29788 Click to expand... I see what you’ve done, that 16 caused you a bit of an error. You should be multiplying by 1/16 (remember your fraction laws : 0)

popjin said: Where am I going wrong here? Question: Given vector u = (-4cos30, 4sin30) and vector v = (6cos45, -6sin45) find projuv (projection of v onto u) in exact form Working: View attachment 29788 Click to expand... I see what you’ve done, that 16 caused you a bit of an error. You should be multiplying by 1/16 (remember your fraction laws : 0)

P popjin Member Joined Feb 22, 2019 Messages 41 Gender Male HSC 2020 Dec 27, 2020 #5 Eagle Mum said: Are you supposed to be dividing or multiplying by 16(?) Click to expand... Etho_x said: I see what you’ve done, that 16 caused you a bit of an error. You should be multiplying by 1/16 (remember your fraction laws : 0) Click to expand... Ah yup, that was it - I should have caught that. Thanks so much for the help!

Eagle Mum said: Are you supposed to be dividing or multiplying by 16(?) Click to expand... Etho_x said: I see what you’ve done, that 16 caused you a bit of an error. You should be multiplying by 1/16 (remember your fraction laws : 0) Click to expand... Ah yup, that was it - I should have caught that. Thanks so much for the help!