How Math Changes Over Time

[Navi-gz]

As the math levels increased, his accent also changed from American to Indian

[Mujtaba_Ali_]

Solving the last problem
The question is on surface integral using parameterised coordinates
Looking at the cross product which means a perpendicular to the surface, we substitute the expression with r^2 sin phi
Since the value of the function is not mentioned here, ill assume f(x, y, z) to be 1
Now: dS=r^2 sin phi d(theta)d(phi)
Applying the given integrals both sides,
On RHS, first doing theta: integral 0-2pi d theta = 2pi
Integral 0 to pi ( sin phi)d phi= -cos phi and applying limits we get 2
Combining all expression we get r^2*2pi*2= 4pi r^2 which is area of a sphere

[VillagerPlaystationVita]

Simple highschool math practice if you are scrolling through comments.

1. A triangle's hypotenuse is 35 cm and it's adjacent side is 23 cm. What is angle ∅ (theta)?


2. Solve for the y intercept(s):
x^2 - 6y = 3x + 7
3x + y = 3

3. If a hammer dropped from a 54 ft tall building heading 4 mph west, how long would it take for the hammer to hit the ground in seconds?

Edit: accidentally swapped values for question 1, fixed it

[NiveditaSinha-xy]

In India
1+1 =nursery
100÷5 = grade 1
(11x)+3= 36 is grade 6
Pythagoras theorem=7

[HarshHingane]

We have trigonometry in class 10☠️
And we learnt pythgorean theorem in class 7 Here in india

[RAMY]

"😠I said times up😠"
Too relatable...

[DaMostAvrageSoilders]

and job is:
can of beans + X5 soda crates + food + decoration + litterally toys. + working = cash
edit o_o what in the world 4.5K LIKES?! PLUS A HEART?!?!?!?!?!? CRAZYYYY
Other edit: ok nvm it got removed

[paminipremalal]

This is the real truth that adults cannot understand at all. 😢

[purpledangerousonic]

In my school:
Nursery: simple addition and subtraction, 1+1 2-1
KG: Multiplication Tables and division readiness
1: Simple division
2: same
3: multiplication with 2 digit and 2 digit division
4: 3 digit division and multiplication factor and multiples lcm hcf
5: ?

[eternity_]

For India (in my school)
Nursery : 1+1
kindergarten: table of 2
1st grade: multiplication, division, addition and subtraction
3rd grade: DMAS
4th grade: BODMAS
5th grade: algebra
6th grade: linear equations
7th grade: Pythagoras theorem and trigonometry
8th: distance formula and shit
Then it’s the same

[universalC]

maths goes from numbers to letters to Egyptian hieroglyphics

[bijitasardar]

Hey! Hey! Hey! It's not fair, in India there is Pythagoras theorem in class 7 and trigonometry in class 8.😭😭😭 It's so unfair.

[pizza]

Yeah this is so relatable, it starts out super easy and very easy to understand as well until you hit high school and they start adding letters into the mix.

[mhabibulla]

He roasted the whole school and college life 😂😅😢

[mobiltoxin]

Let x = null, y = null; let cosx, cosy; let angle = math.atan2(x-cosy, y-cosx) return Math.cos(cosx) * 80, Math.sin(cosy) * 80; u have 20 minutes to answer what direction x and y would be facing and the radius and the angle

[YouCanCallMeKTS]

*I learnt:*
1+1 in U Kg
100÷5 in 5th
(11x)+ 3=36 in 7th (simple equations)
Pythagoras Theorem also in 7th (triangle and its properties)
*Now, the answers/formulas:*
Formula of P.G.T = H²=B²+P²
H² = Hypotenuse²
B² = Base²
P² = Perpendicular²
Perpendicular² is also known as altitude²
Hypotenuse is the longest side in the right angle
Base is the __ part in the right angle
Perpendicular is the straight part of the right angle
P.G.T= Pythagoras Theorem
(11x)+3=36
11x=36-3
11x=33
x=33
(divided by)
11
=3
Edit: Ik all this coz I'm the topper in maths

[yvn]

all went downhill until they added letters😔

[MiniGamerOG]

That slap was too personal😂💀
It got me 😂 lol

[Rjsere]

Ive only had one teacher who actually explained how geometry could be used in the real world

[JellyCringeAf]

Hearing Pythagorean theorem made me remember when Dazai said The Pythagorean theorem is a fundamental relation in Euclidean geometry between the three sides of a right triangle