Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#1601 Re: Help Me ! » Annual Calculus Questions » 2012-11-02 01:22:46

Thank-you. Much appreciated.

#1602 Re: Help Me ! » Annual Calculus Questions » 2012-11-02 01:19:34

Well, this was relatively simple. Anyways, thanks a lot.

#1603 Re: Help Me ! » Annual Calculus Questions » 2012-11-02 01:13:24

If you guys could check them...Much appreciated.

#1604 Help Me ! » Annual Calculus Questions » 2012-11-02 01:10:23

ShivamS
Replies: 79

Find f'(x) (the derivative of f(x)) if f(x) = 7x^3 - 2x^2 + 4x - 5.

21x^2 - 4x + 4

The integral of 3x^2 - 4x + 1 equals x^3 - 2x^2 + x. Is this always correct?
No

Find dy/dx if y = e^a and a is constant.
0

If f(x) = x (ln x), find f'(x).
1 + ln x


If the velocity of a particle at time t is represented by the equation v(t) = 8t + 2, find the position of the particle at time 3 if the position at time 0 is 0.
42

An object is in freefall. It remains in freefall for 5 seconds before it hits the ground. How high was the object when it first started falling if its starting velocity was 0? (Acceleration due to gravity is -9.8 meters/second^2).
122.5m

If f(x) = (sin x)/x, what is the limit of the function as x approaches zero?
1

Find the area of the region bounded by the graphs of y = x^2; x = 0; x = 2; and the x axis.
8/3

If f(x) = e^x, the integral of f(x) always equals the derivative of f(x).
no

If f(x) = x^3 - 2x^2 + 4x + 1, how many inflection points does this graph have?
1

#1606 Re: Puzzles and Games » fun math games for kids » 2012-11-02 00:49:22

Hi;
there are milions of Mathematics-related games out there, especially for young mathematicians.

#1611 Re: Coder's Corner » Coding » 2012-10-23 01:43:44

I like creating compression systems. On IDE based languages anyways...

#1612 Re: Maths Is Fun - Suggestions and Comments » Chatroom » 2012-10-23 01:42:15

Would he mind if all of us gathered on an un-official chat room on the link I would post somewhere?

#1614 Re: Maths Is Fun - Suggestions and Comments » Chatroom » 2012-10-23 01:34:29

I am one of those who goes off-topic, however it is required. Frankly, if all the conversations here were about mathematics, there would be very few posts. I like Math, hwoever a forum fully comprised of Math-based questions will not be heavily populated.

#1615 Re: Coder's Corner » Coding » 2012-10-23 01:31:43

I did not like Lisp.

#1617 Re: Coder's Corner » Compression System » 2012-10-23 01:28:27

Well I used the MTF algorithm mainly. Have you heard of EMTF?

#1619 Re: Coder's Corner » Coding » 2012-10-21 08:59:56

I still prefer other languages over C++.

#1620 Re: Puzzles and Games » Can you suggest six names of great mathematicians quickly? » 2012-10-21 08:55:19

As I said, prefer schoolwork. Tuition is only for our benefits and it will help us succeed in life.

#1621 Re: Maths Is Fun - Suggestions and Comments » Chatroom » 2012-10-21 08:52:51

Hi Evan, nice suggestion but it has been disregarded many times before. Why not simply appoint more chat moderators such as Stefy. And almost no one (unless Genius returns) here flames.

#1623 Re: Help Me ! » Zahlen » 2012-10-20 08:06:41

Ah. So there is no actual specified system for the representation of such number systems. They should call it SINS, as in System Internationale Number Systems (not implying that it is morally degenerate however).

#1624 Re: Help Me ! » Zahlen » 2012-10-20 06:51:56

By C-, I meant C with a dash on top:   -
                                                        C

#1625 Re: Help Me ! » Zahlen » 2012-10-20 06:45:04

I believe imag numbers are represented with a C-, is it not? In the education system here, they showcase Integer as I.

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