Sin, cos, and ✔️ Stuff

#1

I was wondering what is the sin, cos, and check thing for and how u use it can someone tell me like @MagmaPOP ive seen him use it. (This is for fun)

• ITS SUPER EASY
• how do you use it
• i know a little

0voters

#2

The check mark means square root. Do you know what square of numbers are?

#3

Ummmmmmmm i dont know

#4

Im in 5th grade so i might not know alot

#5

Square are basically a number multiplied by themselves.
For example
1 time 1 which equals 1
2 time 2 which equals 4
3 times 3 which equals 9
I'm assuming you know multiplication!

#6

Yes

#7

Ok, so a square root is basically the opposite of that. The square root of 9 is 3, square root of 4 is 2.

Do you know what the square root of 25 is?

#8

I'm in 5th grade and I know square! and partly sin and cos!

#9

I lernt square root in yeaR 4!!!!!!!!

#10

People live in different places so they would teach people different stuff. I'm in Middle School(not saying exactly what grade) and I only know square roots but not sin or cos(i'd like to learn more about sin and cos they're confusing and I only know the basics)

#11

right...

#12

OK... What is the sin of 270

#13

I don't know a lot about it (I think it's a negative right) @Stampys_fans

#14

5 and i kinda know square root i learned a little in 3rd grade

#15

-0.176.../1 (if 270 is degrees, if it's radians then that is a highly impractical number) also I'm probably wrong, @oio fix my maths pls

#16

-0.17604594647, think...

#17

#18

Sorry,

I may be a little behind the curve here. Not sure what the context is, because i haven't read the above. I just noticed the @ notification thingy.

So, do you want to convert 270 degrees to radians?

You just need to remember this stuff

[your number in degrees] is to 360 degrees (a full circle)
what

You just set up the ratio, if you don't remember the multiplicative factor. I mean, there's the basis for the answer.

With that said, it simplifies to A(rad) = A(deg)* 2 Pi /360.
And 2*Pi = 2*3.14159265... or 6.2931853...
So the above boils down to just

And, yes, that's about what Stampys_fans said, except for a factor of ten (easy typo to make).

270 degrees would be 4.71238898... radians