Integration (1 Viewer)

[steve001]

Hey,
I just got a question about integration on the y-axis. it is:
What is the area between the curve x = 1 - (y^2) and the y-axis.
i got two thirds but the book says 1 and a third.

Thanks in advnce

 

[lolokay]

what did you put as your limits? where does the curve cut the y-axis?

 

[tacogym27101990]

i love this new latex business

 

[Finx]

Hey,
I just got a question about integration on the y-axis. it is:
What is the area between the curve x = 1 - (y^2) and the y-axis.
i got two thirds but the book says 1 and a third.

x = (1-y)(1+y)
x = -(y-1)(y+1)
.'. intercepts are 1 and -1

(integral with limits 1 and -1) (1-y²)dy
= [-(y³/3) + y ]
= (-1/3 + 1) - (1/3 - 1)
= 4/3

 

[Finx]

Hey Tacogym how do I write my equation all fancy like yours?

 

[tacogym27101990]

Hey Tacogym how do I write my equation all fancy like yours?

you use that latex equation editor thing at the bottom of the page
but if you learn how to do a space make sure you tell me

 

[azureus88]

you use that latex equation editor thing at the bottom of the page
but if you learn how to do a space make sure you tell me

To put a space, you type \, between two words.

 

[azureus88]

or if you want to type a sentence, put a $ at the start and end of the sentence.