For part d i used (2 0 -2), but then i used (-2 0 2) for part e when trying to find the angle( as i know the direction of the vector doesn't affect the answer), though i apparently found the abuse angle between these vectors. cos(theta)= -4/5 and then i just said cos(theta)=4/5 as i knew there is both abuse angle and acute angle between these vectors. Will i penalised for this?

Reply 4975

Tsuna12

1

Original post by Serine Soul

I'm sure you've done better than that :smile:

especially in C4

hahahaha nar mate my brain cracked after the C3 exam-_-

Reply 4976

Tsuna12

1

Original post by Ramil Ahmadov

For part d i used (2 0 -2), but then i used (-2 0 2) for part e when trying to find the angle( as i know the direction of the vector doesn't affect the answer), though i apparently found the abuse angle between these vectors. cos(theta)= -4/5 and then i just said cos(theta)=4/5 as i knew there is both abuse angle and acute angle between these vectors. Will i penalised for this?

how the **** do you even remember the questions and your answers???????

Reply 4977

Ramil Ahmadov

7

Original post by Tsuna12

how the **** do you even remember the questions and your answers???????

This was really important exam for me lol. I am sure i did everything correct until the question 8, where i am not sure about this part and i know i ****ed up the last 5 marks.

Reply 4978

NotNotBatman

20

Original post by Serine Soul

How about 72 in C3 and 63 in C4? :redface:

I reckon

C3 - 98
C4 - 80

Reply 4979

NotNotBatman

20

Original post by Ramil Ahmadov

For part d i used (2 0 -2), but then i used (-2 0 2) for part e when trying to find the angle( as i know the direction of the vector doesn't affect the answer), though i apparently found the abuse angle between these vectors. cos(theta)= -4/5 and then i just said cos(theta)=4/5 as i knew there is both abuse angle and acute angle between these vectors. Will i penalised for this?