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oh damn yh i understand it now, that cleared all the confusion up

bruh lol

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

i searched acehcs and thsc and stuff but couldnt find much, like compared to 4u or smthg sdd papers seems to be rare

yep that does, also do you know of any which have the interrelationships between software and hardware topic questions

legit couldnt find any software trial papers

thanks

ah ok this actually makes sense thanks

Ah ok thanks @CM_Tutor @ExtremelyBoredUser

Wait can U explain the process through which U determined it's 2 + 4k

Answers say -2(2k+1)

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

ah this makes it so clear thanks a lot bro

how would i simplify: A^2 x (Cos^2alpha+2cosalpha i sin alpha -sin^2 alpha)

ah ok this makes sense thx. also how would i approach this q as well: this needs to be proved.