Post Your Maths Problems Here

[Thebman712]

 

my home work plz 

-snip-

 

The whole page? muhahahaha . It is easy though or not?

 

its math 9 enriched (advanced) but its more tedious than hard, and i dont have to do all the questions, but i already did most of my assignment.

 

my classed learned a entire chapter of math in one class, and the regular class would take 2-3 weeks to do it

[TheHolyCawCaw]

its math 9 enriched (advanced) but its more tedious than hard, and i dont have to do all the questions, but i already did most of my assignment.

 

my classed learned a entire chapter of math in one class, and the regular class would take 2-3 weeks to do it

 

Your system is probably completely different from ours here in Luxembourg^^

 

Are you in a university or college / school , sry have not really a big clue how that works in Canada/ Murica in general^^

[Mujteba]

Since this is the "official" thread @LukaP @Mujteba

 

Done and done!

[A.D.A.M]

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Done and done!

Damnit i hate computer math this is the 3rd time i miscopied an equation. Thanks though

[Thebman712]

Your system is probably completely different from ours here in Luxembourg^^

 

Are you in a university or college / school , sry have not really a big clue how that works in Canada/ Murica in general^^

im in a school, grade 9, i think that is simillar to year 9, im 14 and we have kids born in 2000 in my class

[LawrenceBarnes2013]

wow, just came back and i inspired a useful thread , ok i'm in 

 : phys 

justify this : N(n*t1/2)=N(t=0)/2^n        n from |N   and t1/2 the half life time 

[A.D.A.M]

im in a school, grade 9, i think that is simillar to year 9, im 14 and we have kids born in 2000 in my class

My school has a programme like that. The Accelerated programme where you can do your IGCSE a 2 year course in one year.

[AlexStriz]

Yay math!

 

edit: just saw the "need help with maths" thread that started this thread... damn @LukaP is good at maths

[TheHolyCawCaw]

This is exactly what I am doing right now^^

[A.D.A.M]

God what is that... Oh wait thats integration.

[AlexStriz]

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IMG_0705.JPG

 

Done and done!

You in AP Calc? That looks like Chapter 3 in our book

[A.D.A.M]

You in AP Calc? That looks like Chapter 3 in our book

Thats what I'm doing and what is AP calculus?

[AlexStriz]

This is exactly what I am doing right now^^

Fun, isn't it  <_<

 

I like integration more than I do derivatives though... at least, so far. 

[AlexStriz]

Thats what I'm doing and what is AP calculus?

AP Calc is short for 'Advanced Placement' Calculus

[TheHolyCawCaw]

Fun, isn't it  <_<

 

I like integration more than I do derivatives though... at least, so far. 

 

I like derivatives more though

[A.D.A.M]

AP Calc is short for 'Advanced Placement' Calculus

What im doing is Pure Mathematics AS (british curriculum) .

[Thebman712]

My school has a programme like that. The Accelerated programme where you can do your IGCSE a 2 year course in one year.

yeah thats not at all what my class is like, there really is no benefit to taking enriched vs regular and we just do stuff faster 

[AlexStriz]

I like derivatives more though

I just understand integration more. The concept of derivatives.. ugh. I guess I like working backwards more than I do forwards 

 

Plus derivatives got really hard IMO. We're just learning integration, so it's still pretty easy. Trust me, in three weeks time, I'll hate them both equally.

[AlexStriz]

yeah thats not at all what my class is like, there really is no benefit to taking enriched vs regular and we just do stuff faster 

Same. My advanced placement chemistry class does the exact same thing as the normal chemistry class (peasants  ) does, just without the fun and games (and movies), and at a faster, more rigorous pace.

[A.D.A.M]

yeah thats not at all what my class is like, there really is no benefit to taking enriched vs regular and we just do stuff faster

The grade 9 in our school does that theres upper and lower bands and its basically like that.

[NumLock21]

clf; clear; syms x y

 

eq1 = ((x/7)^2*sqrt(abs(abs(x)-3)/(abs(x)-3))+(y/3)^2*sqrt(abs(y+3/7*sqrt(33))/(y+3/7*sqrt(33)))-1);

eq2 = (abs(x/2)-((3*sqrt(33)-7)/112)*x^2-3+sqrt(1-(abs(abs(x)-2)-1)^2)-y);

eq3 = (9*sqrt(abs((abs(x)-1)*(abs(x)-.75))/((1-abs(x))*(abs(x)-.75)))-8*abs(x)-y);

eq4 = (3*abs(x)+.75*sqrt(abs((abs(x)-.75)*(abs(x)-.5))/((.75-abs(x))*(abs(x)-.5)))-y);

eq5 = (2.25*sqrt(abs((x-.5)*(x+.5))/((.5-x)*(.5+x)))-y);

eq6 = (6*sqrt(10)/7+(1.5-.5*abs(x))*sqrt(abs(abs(x)-1)/(abs(x)-1))-(6*sqrt(10)/14)*sqrt(4-(abs(x)-1)^2)-y);

 

eqf = '((x/7)^2*sqrt(abs(abs(x)-3)/(abs(x)-3))+(y/3)^2*sqrt(abs(y+(3*sqrt(33))/7)/(y+(3*sqrt(33))/7))-1)*(abs(x/2)-((3*sqrt(33)-7)/112)*x^2-3+sqrt(1-(abs(abs(x)-2)-1)^2)-y)*(9*sqrt(abs((abs(x)-1)*(abs(x)-3/4))/((1-abs(x))*(abs(x)-3/4)))-8*abs(x)-y)*(3*abs(x)+3/4*sqrt(abs((abs(x)-3/4)*(abs(x)-1/2))/((3/4-abs(x))*(abs(x)-1/2)))-y)*(9/4*sqrt(abs((x-1/2)*(x + 1/2))/((1/2-x)*(1/2+x)))-y)*((6*sqrt(10))/7+(3/2-abs(x)/2)*sqrt(abs(abs(x)-1)/(abs(x)-1))-(6*sqrt(10))/14*sqrt(4-(abs(x)-1)^2)-y)=0';

 

axes('Xlim', [-7.25 7.25], 'Ylim', [-5 5]);

hold on

 

ezplot(eq1,[-8 8 -3*sqrt(33)/7 6-4*sqrt(33)/7]);

ezplot(eq2,[-4 4]);

ezplot(eq3,[-1 -0.75 -5 5]);

ezplot(eq3,[0.75 1 -5 5]);

ezplot(eq4,[-0.75 0.75 2.25 5]);

ezplot(eq5,[-0.5 0.5 -5 5]);

ezplot(eq6,[-3 -1 -5 5]);

ezplot(eq6,[1 3 -5 5]);

 

title('Batman');

xlabel('');

ylabel('');

hold off

 

figure

axes('Xlim', [-7.25 7.25], 'Ylim', [-5 5]);

hold on

ezplot(eqf, [-7 7 -3 3]);

hold off

[Sakkura]

I just understand integration more. The concept of derivatives.. ugh. I guess I like working backwards more than I do forwards 

 

Plus derivatives got really hard IMO. We're just learning integration, so it's still pretty easy. Trust me, in three weeks time, I'll hate them both equally.

 

It gets tricky once you get to differential equations.

[AlexStriz]

 

clf; clear; syms x y

 

eq1 = ((x/7)^2*sqrt(abs(abs(x)-3)/(abs(x)-3))+(y/3)^2*sqrt(abs(y+3/7*sqrt(33))/(y+3/7*sqrt(33)))-1);

eq2 = (abs(x/2)-((3*sqrt(33)-7)/112)*x^2-3+sqrt(1-(abs(abs(x)-2)-1)^2)-y);

eq3 = (9*sqrt(abs((abs(x)-1)*(abs(x)-.75))/((1-abs(x))*(abs(x)-.75)))-8*abs(x)-y);

eq4 = (3*abs(x)+.75*sqrt(abs((abs(x)-.75)*(abs(x)-.5))/((.75-abs(x))*(abs(x)-.5)))-y);

eq5 = (2.25*sqrt(abs((x-.5)*(x+.5))/((.5-x)*(.5+x)))-y);

eq6 = (6*sqrt(10)/7+(1.5-.5*abs(x))*sqrt(abs(abs(x)-1)/(abs(x)-1))-(6*sqrt(10)/14)*sqrt(4-(abs(x)-1)^2)-y);

 

eqf = '((x/7)^2*sqrt(abs(abs(x)-3)/(abs(x)-3))+(y/3)^2*sqrt(abs(y+(3*sqrt(33))/7)/(y+(3*sqrt(33))/7))-1)*(abs(x/2)-((3*sqrt(33)-7)/112)*x^2-3+sqrt(1-(abs(abs(x)-2)-1)^2)-y)*(9*sqrt(abs((abs(x)-1)*(abs(x)-3/4))/((1-abs(x))*(abs(x)-3/4)))-8*abs(x)-y)*(3*abs(x)+3/4*sqrt(abs((abs(x)-3/4)*(abs(x)-1/2))/((3/4-abs(x))*(abs(x)-1/2)))-y)*(9/4*sqrt(abs((x-1/2)*(x + 1/2))/((1/2-x)*(1/2+x)))-y)*((6*sqrt(10))/7+(3/2-abs(x)/2)*sqrt(abs(abs(x)-1)/(abs(x)-1))-(6*sqrt(10))/14*sqrt(4-(abs(x)-1)^2)-y)=0';

 

axes('Xlim', [-7.25 7.25], 'Ylim', [-5 5]);

hold on

 

ezplot(eq1,[-8 8 -3*sqrt(33)/7 6-4*sqrt(33)/7]);

ezplot(eq2,[-4 4]);

ezplot(eq3,[-1 -0.75 -5 5]);

ezplot(eq3,[0.75 1 -5 5]);

ezplot(eq4,[-0.75 0.75 2.25 5]);

ezplot(eq5,[-0.5 0.5 -5 5]);

ezplot(eq6,[-3 -1 -5 5]);

ezplot(eq6,[1 3 -5 5]);

 

title('Batman');

xlabel('');

ylabel('');

hold off

 

figure

axes('Xlim', [-7.25 7.25], 'Ylim', [-5 5]);

hold on

ezplot(eqf, [-7 7 -3 3]);

hold off

 

.... umm.... Oh, BATMAN!

[T.Vengeance]

I need to calculate the inverse of 6x6 matrix any help.... Kappa 

Just row reduce with the identity matrix

[Mujteba]

I just understand integration more. The concept of derivatives.. ugh. I guess I like working backwards more than I do forwards 

 

Plus derivatives got really hard IMO. We're just learning integration, so it's still pretty easy. Trust me, in three weeks time, I'll hate them both equally.

Integration is a lot more fun because it's just a massive bag of tricks and figuring out the most appropriate and applicable method to antidifferentiate; unlike differentiation you don't have your product, quotient or chain rules so it's either u-sub, integration by parts or purely by recognition (by far my favourite of the three).