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Thanks it helped. What about the other question? I'm still kinda confused lol

How would you do these?

How would you sketch the graph? Usually for motors or generators i sketch a flux vs time graph then take the negative derivative but idk how to do that with this example..

how would you do 7b? idk how to use the induction hypothesis to get anywhere

Fc is a fancy way of expressing the net force. At the bottom, there is weight force (Fg) downwards and tension (Ft) upwards. Hence Fc = Ft - Fg. Thus, Ft = Fc + Fg. At the top, the net force (Fc) is Fg + Ft as both are in the same direction. Hence Fc = Fg + Ft. Thus, Ft = Fc - Fg. You're...

also 14c i) and ii) xD. im stuck for i) asI expanded (a+b)^3 >= 0 but idk from there

How would you do d(ii)?

How would u do these 2 qurstions? Agagin idk where to start

Why must n be divisible by 2 if n^2 is divisible by 2? Also, does this apply to irrational numbers and variables? I.e. if n^2 is divisible by p then n must be divisible by p.

wdym not reflective of the graph? Like should decrease in concentration drop harder for Z in c or something?

Answer is D but why can't it be C?

How would you do both these questions? I don't know where to start

Thank you! it did

For a and b, I try to modulus both sides and then substitute but get back where I started. How would you do these types of questions?

Yes thank you!

Unsure how to word part a and for part b, I don't know where to start kinda. I tried to substitute and other methods but got nowhere

Just not sure where to start. I wrote out equations where i let a and b be some arbitrary vector and got nowhere.

I've tried to brute force it by distance formula, properties of a parallelogram and finding each point separately and got no success. Would there be a more elegant way of solving this question? Thanks :)

Thank you! this rlly helped and now my brain isn't fried :)