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by Hell0
Thu Aug 28, 2014 5:21 pm
Forum: Calculus
Topic: Nature of the line of the tangent?
Replies: 1
Views: 756

Nature of the line of the tangent?

Consider the equation x^2+3y^2+xy=3. a) Write an expression for the slope of the curve at any point (x,y). The answer is: dy/dx = (-2x-y)/(6y+x) b) Find the equation of the normal line to the curve at the point (0,1). The answer is: y-1=6x c) What is d^2y/dx^2 at (0,1)? The answer is: -11/36 d) If (...
by Hell0
Thu Aug 28, 2014 5:14 pm
Forum: Calculus
Topic: Quick question: What does the 3 mean the problem?
Replies: 4
Views: 746

Re: Quick question

buddy wrote:
Hell0 wrote:How did you get 1?

Factor out the 3 from the integral. Divide through.

yeah i got it a while ago. i was confused because i'm used to seeing y instead of f(x) so it looked out of place
by Hell0
Wed Aug 27, 2014 9:50 am
Forum: Calculus
Topic: Calc: no idea how to do int_0^{1/2} 4/(1+4t^2) dt
Replies: 1
Views: 540

Calc: no idea how to do int_0^{1/2} 4/(1+4t^2) dt

. . . . .

I have no idea how to go about doing this. The fraction in the denominator is what's confusing me. I tried U-Substitution to no avail.
by Hell0
Tue Aug 26, 2014 11:30 pm
Forum: Calculus
Topic: Quick question: What does the 3 mean the problem?
Replies: 4
Views: 746

Re: Quick question

Given: . . . . . \displaystyle{\int_0^{50}\, 3\, f(x)\, dx\, =\, 3,\, \int_2^{50}\, f(x)\, dx\, =\, -4} Determine: . . . . . \displaystyle{\int_0^2\, f(x)\, dx} What does the 3 mean the problem? I would take it as meaning "three times the functional value", so ther...
by Hell0
Tue Aug 26, 2014 10:18 pm
Forum: Calculus
Topic: Quick question: What does the 3 mean the problem?
Replies: 4
Views: 746

Quick question: What does the 3 mean the problem?

So I have a question that says:

Given:

. . . . .

Determine:

. . . . .

What does the 3 mean the problem?
by Hell0
Thu Aug 07, 2014 2:46 am
Forum: Calculus
Topic: integration
Replies: 4
Views: 1072

Re: integration

thanks.. i got it, 1/2pi.
by Hell0
Thu Jul 31, 2014 6:40 am
Forum: Calculus
Topic: integration
Replies: 4
Views: 1072

Re: integration

yeah that's correct. i haven't tried anything, which is why i said i need to be refreshed lol.
by Hell0
Wed Jul 30, 2014 8:18 am
Forum: Calculus
Topic: integration
Replies: 4
Views: 1072

integration

so i'm starting my summer assignment for ap calc (early right?) and i need some refreshing lol:

......4
--------
1+4t^2

from 0 to 1/2

(ignore the periods, just to get it in the middle)
by Hell0
Thu Dec 05, 2013 2:45 am
Forum: Trigonometry
Topic: Bonus question
Replies: 8
Views: 2733

Re: Bonus question

alright im onto something. im just wondering if you know how to find the distance between 2 points with the slope, is there a formula? is it even possible to find the distance with only a slope...?haha
by Hell0
Wed Dec 04, 2013 12:16 am
Forum: Trigonometry
Topic: Bonus question
Replies: 8
Views: 2733

Re: Bonus question

im sorry this is correct i promise: we have to try and find the length of the best fit for the curve around the back using the givens. this is where its trig (and not calc)

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