thanks so much m8, yep i just wanted to ensure i understood how to these qs properly cuz for some i get half way through and get stuck and with no worked sols its hard to verify whether im on the right track or not
for such 1 markers would working out ever be required, or is it just expected u plug into calc and write the answer cuz i feel its unnecessary but don't wanna risk it
im confused regarding this
cos2pi/3 would be cos-pi/3
but then if its an even f(x) should it become cospi/3
yh im confused regarding this concept cuz when writing anything in mod arg form i heard that the cos can absorb the negative but then
Need to find values of n for which (1+I)^n is purely real or imaginary. Did the real part but imag part always screws me up so yh wanted to know how to do it.
I did this so far