Post Your Maths Problems Here

[LukaP]

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).

The best is when you come to a lecture, and there is a task, and you solve it by guessing, and then proving backwards that the result is correct

[AlexStriz]

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).

I hated deriving, especially when the problem had all three rules in it. God, that was terrible. And then there were optimization problems, Newton's Method and Bisection Method. Ugh, my head hurts just thinking about it. 

 

So far integration is a lot easier. We've learned about left endpoint, right endpoint, and midpoint sums. Seems pretty easy. I actually understand the concept which is a first. Last time that happened was in geometry lol. It helps a lot if you know what you're doing instead of just memorizing steps to get the answer

[Mujteba]

I hated deriving, especially when the problem had all three rules in it. God, that was terrible. And then there were optimization problems, Newton's Method and Bisection Method. Ugh, my head hurts just thinking about it. 

 

So far integration is a lot easier. We've learned about left endpoint, right endpoint, and midpoint sums. Seems pretty easy. I actually understand the concept which is a first. Last time that happened was in geometry lol. It helps a lot if you know what you're doing instead of just memorizing steps to get the answer

Agreed. Fundamental theorem of calculus is a must to understand integration although many teachers run over it briefly or even skip it entirely. Once you have a grasp of the basics, the variety of extensions of antidiff (volumes of solids of revolution, area between curves, shell method) are a breeze. 

 

But still I personally don't mind differentiation, it's always pretty simple except when you are so use to antidiff that you end up with d/dx(sinx)= -cosx

[Unique Little Snowflake]

I have 3 days of class left in the semester and I haven't been to a lecture for a couple months. This is gonna be fun.

[LukaP]

I have 3 days of class left in the semester and I haven't been to a lecture for a couple months. This is gonna be fun.

i have an exam on friday. ive never been on a lecture

[Unique Little Snowflake]

i have an exam on friday. ive never been on a lecture

It's not my first time through the material, and I have 3 days between my 2nd last exam and calc. I'll teach the course to myself then.

[LukaP]

It's not my first time through the material, and I have 3 days between my 2nd last exam and calc. I'll teach the course to myself then.

i just need to remind myself C syntax

[Mujteba]

i have an exam on friday. ive never been on a lecture

 

Solution? Skip entirely.

[AlexStriz]

i have an exam on friday. ive never been on a lecture

I have 3 days of class left in the semester and I haven't been to a lecture for a couple months. This is gonna be fun.

 

Our lectures are videos that my teacher posts on Youtube. We have a flipped classroom, so we learn at home, and do work at school. Good for when we're out ski racing.

 

I just put him at 2x speed. Get through the videos in an hour and a half instead of three hours. 

[LukaP]

LearningPyramid.jpg

 

Solution? Skip entirely.

im actually so much of an audio/visual type that just listening to a lecture will be enough for me to remember a vast majority of it, so that pyramid is flawed for me  

[Unique Little Snowflake]

LearningPyramid.jpg

 

Solution? Skip entirely.

I have a 9:30-10:30 Mon-Thurs, and my next class after that isn't until 1:30. Good luck getting your ass out of bed for that one to begin with.

[Nineshadow]

my home work plz 

GOD DAMN IT!

WHY DOES YOUR STUFF HAVE TO BE SOOO SIMPLE.We were doing stuff like that in the 5th grade or something.

I'm in the 9th grade too and ...well...have a look at my last test :

1.Demonstrate that is divisible by 19 whatever value of n (natural)

2.Demonstrate that  (n natural and bigger or equal to 2)

3. [] = ?

where [x] is the smallest integer smaller or equal to x.

4. Calculate 

5. a + b + c + d = 1

Demonstrate that < 8

6.Calculate 

7.Demonstrate that 

8.Demonstrate that >= 3/2  ( Nesbit's inequality)

[Unique Little Snowflake]

GOD DAMN IT!

WHY DOES YOUR STUFF HAVE TO BE SOOO SIMPLE.We were doing stuff like that in the 5th grade or something.

I'm in the 9th grade too and ...well...have a look at my last test :

1.Demonstrate that is divisible by 19 whatever value of n (natural)

2.Demonstrate that  (n natural and bigger or equal to 2)

3. [] = ?

where [x] is the smallest integer smaller or equal to x.

4. Calculate 

5. a + b + c + d = 1

Demonstrate that < 8

6.Calculate 

7.Demonstrate that 

8.Demonstrate that >= 3/2  ( Nesbit's inequality)

A lot of that is just basic algebra and being able to manipulate it effectively.

[Nineshadow]

A lot of that is just basic algebra and being able to manipulate it effectively

 

Can you compare what he's doing to what I am doing?

 

Here's another problem : (my homework)

Let {an}n≥1 be a sequence of real numbers such that |an+1 − an| ≤ 1, for all positive integers n.

Let {bn}n≥1 be the sequence defined by

bn =(a1 + a2 + · · · + an)/n

 

Prove that |bn+1 − bn| ≤ 1/2 for all positive integers n.

[Unique Little Snowflake]

 

Can you compare what he's doing to what I am doing?

 

Here's another problem : (my homework)

Let {an}n≥1 be a sequence of real numbers such that |an+1 − an| ≤ 1, for all positive integers n.

Let {bn}n≥1 be the sequence defined by

bn =(a1 + a2 + · · · + an)/n

 

Prove that |bn+1 − bn| ≤ 1/2 for all positive integers n.

 

Everything is relative. What you saw in Grade 5 seems easy now, but it blew your mind back then. This is what my homework looks like: 

[jayctech]

Everything is relative. What you saw in Grade 5 seems easy now, but it blew your mind back then. This is what my homework looks like: 

And this is why I dropped maths.

[Nineshadow]

Everything is relative. What you saw in Grade 5 seems easy now, but it blew your mind back then. This is what my homework looks like: 

 

I'm pretty sure that 5^2 * 5^3 = 5^5 didn't blow my mind back then.Yes, there were things that I've understood way better since then for sure.

But damn, he's in the 9th grade , I'm in the 9th grade as well, and look at the difference.

[Unique Little Snowflake]

I'm pretty sure that 5^2 * 5^3 = 5^5 didn't blow my mind back then.Yes, there were things that I've understood way better since then for sure.

But damn, he's in the 9th grade , I'm in the 9th grade as well, and look at the difference.

Trust me, you'd rather be forced to learn early. At least you're ahead of the curve for your next class or university. I've breezed through first year calc, but I've seen the syllabus for next year's calc, and it won't be fun.

[Thebman712]

GOD DAMN IT!

WHY DOES YOUR STUFF HAVE TO BE SOOO SIMPLE.We were doing stuff like that in the 5th grade or something.

I'm in the 9th grade too and ...well...have a look at my last test :

1.Demonstrate that is divisible by 19 whatever value of n (natural)

2.Demonstrate that  (n natural and bigger or equal to 2)

3. [] = ?

where [x] is the smallest integer smaller or equal to x.

4. Calculate 

5. a + b + c + d = 1

Demonstrate that < 8

6.Calculate 

7.Demonstrate that 

8.Demonstrate that >= 3/2  ( Nesbit's inequality)

u Asian? 

[Guest]

[Guest]

GOD DAMN IT!

WHY DOES YOUR STUFF HAVE TO BE SOOO SIMPLE.We were doing stuff like that in the 5th grade or something.

I'm in the 9th grade too and ...well...have a look at my last test :

1.Demonstrate that is divisible by 19 whatever value of n (natural)

2.Demonstrate that  (n natural and bigger or equal to 2)

3. [] = ?

where [x] is the smallest integer smaller or equal to x.

4. Calculate 

5. a + b + c + d = 1

Demonstrate that < 8

6.Calculate 

7.Demonstrate that 

8.Demonstrate that >= 3/2  ( Nesbit's inequality)

Congratulations...

on being a condescending jackass...

[Mujteba]

 

Others are pretty straight forward. Just keep applying the Pythagorean Identity and always try working with the more complicated side first. Also if you see a combination of sines with tan, cosec and sec, put everything in terms of sine and cosine and it should be easy. Don't forget your basic algebra like factorisation as well and difference of two squares rule.

[Guest Philosophy]

I'll add a problem here... 2sin^2 x + 3cos -3 = 0. I hope that all works properly I haven't done trig in a long time and it's midnight

[Mujteba]

I'll add a problem here... 2sin^2 x + 3cos -3 = 0. I hope that all works properly I haven't done trig in a long time and it's midnight

[FLAMMABLEGAS17481]

If Lawrence leaves his house and travels at a constant 40 MPH how long will it take Bill from next door to shove a banana up his mom's rectum?

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