Sounds ok to me. If Q is a distance 1 from (0,0) on a unit circle it must be on the unit circle. The angle 45 deg may have to come in to it though? It will be interesting to see the marking scheme.
45 is in the 1st quadrant. 135 (and Q) are in the second quadrant. 45 is therefore only the reference angle. If you did the cos of 45 you would get (1/root2, 1/root2) so the sign would be incorrect.
Hi for part c) can you just do the distance formula between 0,0 and - one/root 2 , one/root 2 to prove because I got root one as the answer ? Thanks.
Sounds ok to me. If Q is a distance 1 from (0,0) on a unit circle it must be on the unit circle. The angle 45 deg may have to come in to it though? It will be interesting to see the marking scheme.
For part C why did you do cos 135 could it not have been cos 45???
45 is in the 1st quadrant. 135 (and Q) are in the second quadrant. 45 is therefore only the reference angle. If you did the cos of 45 you would get (1/root2, 1/root2) so the sign would be incorrect.
@@molloymaths1092 thank you so much you're a life saver! Maths paper 2 is tomorrow 🤞
@@Shawnmusic1224 Best of luck.