#Help

55 messages · Page 1 of 1 (latest)

tight narwhalBOT
echo island
#

i did the working for both i cant figure out why you would get two answers

serene rain
#

What is the interval of integration @echo island ?

echo island
#

what does that mean

#

oh

#

there is none

serene rain
#

you should have 2 values for h and 2 values for t

echo island
#

why is that

serene rain
#

because the integration operation computes the area under a curve

echo island
#

i recreated a question from memory and im sure it was just this

serene rain
#

between 2 points

echo island
serene rain
#

see

#

if you don't have a and b, you will have an infinite number of possibilities

echo island
#

like how dy/dx=1 integrates to y=x+c u dont need two limits to show that

serene rain
#

that C is where the infinity of possibilities lies in the problem

echo island
#

but if u were told it passes through the point (0,1) u can plug in values to find c

serene rain
#

I think my internet is a little slow today, but I'll try to help you

echo island
#

ok ty

serene rain
echo island
#

but i have points

#

h=13 t=0

serene rain
#

I found the error

echo island
#

do tell 🙂

serene rain
#

you're using the wrong property

echo island
#

what does that mean lol

serene rain
#

There's no way that 1/8 enters the Ln twice

#

on the right hand side

#

of the picture

echo island
#

how so

serene rain
#

I'll show you

echo island
#

i was basically assuming i didnt factor 1/8 from the start

#

and then you add it in and it cancels out

#

cause i did this question with a friend, i did the first and he did the 2nd way, i couldnt seem the right answer though

serene rain
#

@echo island

severe sky
#

do you have the original question?

echo island
echo island
serene rain
#

But you multiplied by 1/8 above and bellow

#

you have to put 1/8 outside the integral

#

it doesn't interfere with the integration operation

echo island
severe sky
#

but how did 1/8 got inside your log in the first place?

echo island
#

assuming u dont factor it out does it not go there?

#

obviously it makes it harder but does it not?

serene rain
#

I think he was trying to use the power property

def1.png
echo island
#

no

#

idk what my friend did

#

but he got the answer right and i got it wrong

#

and i did the first way

#

question was making it equate to H=e^something/e^something

serene rain
#

If you take the derivative, it won't be 1/8*(1/(h-5)-1/(h-3))

image.png
severe sky