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The Dumbest mistake u've ever made in a Maths Exam (2 Viewers)

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sine = hypotenuse over adjacent for something. Got it all wrong.
 

u-borat

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i love the adage; silly old hags cant always hide their old age. simple and brilliant.

i once left out 1/4 of a 3 unit exam which was on the back page; happy that was in the prelim course.
 

Doctor Jolly

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This happened in my 2unit exam 2 weeks ago:

22x = 11
x = 2

RAGE!! It was for simultaneous equations too, so you can bet that y was wrong as well :(
 

lyounamu

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Doctor Jolly said:
This happened in my 2unit exam 2 weeks ago:

22x = 11
x = 2

RAGE!! It was for simultaneous equations too, so you can bet that y was wrong as well :(
That's why you have to check your answers at the end. :)
 

Doctor Jolly

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lyounamu said:
That's why you have to check your answers at the end. :)
I know .. I feel so beat up about it.

Anddd... I also completed a perfect square leaving the equation like this:

3x^2 + 8x -1 = 0

*sigh.
 

ForbiddenND

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Lol... It was a multiple choice bit and they gave 4 options of only which 1 was obviously right because it the question was about the volume of a cube. All the answers has cm^2 except one which was cm^3. I spent like 5 mins out of the 10 mins for that section and I still got it wrong lol.
 

nerdsforever

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sin60/tan30
= √3/2 x 1/√3
= 1/2

ARRRGGHHH!!! it was division!!!

--------------------------------------------------------

form equation with roots:
3 and -4

x^2 + x - 12

forgot the = 0. No marks

-----------------------------------------

factorise 28 + 3x - x^2

= (x-7) (x+4)

supposed to be - (x+7) (x+4)
 

Patar

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Well, our old Maths teacher told us about this one, unfortunately its not mine but he's a HSC marker so...

Simplify:
1 mark

b^2 + b + 1
Divided by:
b + 1


and they would cancel out that

b^2 + b + 1
Divided by:
b + 1

to get b^2

It's enough to make you sick, isn't it? lol
 

jockrussell

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Hmm the dumbest mistake ive ever made in a maths test was probably this year in my half yearly i was expanding brackets and i wrote 1*2 = 1 lol, u cant get any dumber than that!
 

dwarven

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jockrussell said:
Hmm the dumbest mistake ive ever made in a maths test was probably this year in my half yearly i was expanding brackets and i wrote 1*2 = 1 lol, u cant get any dumber than that!
o_O
1*2 does = 1:confused:
 

midifile

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In year 11, after learning functions we had a short in class test where we had to sketch about 8 functions and state their domain and range. I completely overlooked the domain and range bit, so completely left it out, so ended up losing half the marks.

Thankfully it didnt count though :p
 

lyounamu

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midifile said:
In year 11, after learning functions we had a short in class test where we had to sketch about 8 functions and state their domain and range. I completely overlooked the domain and range bit, so completely left it out, so ended up losing half the marks.

Thankfully it didnt count though :p
Same here except that it was in my Chemistry exam.
 

jockrussell

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lol im no that dumb, i meant how do u do the real times symbol.
1x2. That 1 but i didnt do it i just copied and pasted it lol.
 

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