year 1 Fm question

[kindred oyster]

I just wanted to confirm that is this correct?
#1020087693197189150

<@&791435371564892232>

[opaque quest]

….

Use a calculator for part a 😭

[kindred oyster]

💀

any way is it correct

[opaque quest]

For part b my teacher said to write the original equation in matrix form

[kindred oyster]

ok

[opaque quest]

Instead of straight into the inverse thing

[kindred oyster]

ok

[opaque quest]

But yeah

It’s right

[kindred oyster]

and how about the conclusion

[opaque quest]

Part c I would say all 3 planes meet at a single point

[quick escarp]

Yeah it’s correct

[kindred oyster]

thats good

ty

[quick escarp]

Yeah he’s right, if it’s low marks you can find the inverse by calculator

[static echo]

u can use ur calc for stuff that is purely numerical

usually actual exams will include algebra so its not like its bad practice to do what u did

[opaque quest]

Not always

You can’t just put a definite integral into ur calc a lot of the time

[static echo]

more in matrix sense

[opaque quest]

Yh

Unless it’s a show that

[static echo]

obvious show rough working like using determinant and stuff

[opaque quest]

Just smack into your calc

[static echo]

but once u sub everything in the formula and stuff doesnt really matter

ye ofc

idk if id factor in part a ngl since it says giving each element in its simplest form

probs fine but

¯_(ツ)_/¯

[kindred oyster]

<@&791435371564892232>

are you guys available

[opaque quest]

This is the paper Tom Crawford did 🥶

[kindred oyster]

whos tom Crawford

[static echo]

ngl that sketch is wrong

if the circle had centre (1,1) and the radius is 3