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#1 Help Me ! » Scetch and find domain + range » 2007-08-06 22:05:00

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Replies: 1

How do I draw this on a graph and state the domain + range?

-                 (  2                         x<-2
-      f(x) = <  √4-x²                  -2≤x≤2
-                 (  -|x|                     x>2

NOTE: √4-x² all of that is square rooted (i.e. <start square rooting> 4-x² </stop rooting>

Thanks in advance

#2 Help Me ! » I missed a lesson and need help with explanation » 2007-08-03 18:43:06

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Replies: 2

I missed a lesson that was about Differential Calculus > Limits

Can someone please explain because I have no idea about it. I know the easier way by the derivative rule but I need to know how to do this way.

Some of the questions are:

Evaluate

lim     (3x)
x->3

lim    (x² -2x+1)
x->-2

lim      (1 + h)з - 1
-         -------------
h->0          h


Thanks in advance, I miy have some more questions later.

#3 Re: Help Me ! » Need Help With One Question » 2007-08-03 18:35:33

Thanks soo much. Fast response too!

#4 Help Me ! » Need Help With One Question » 2007-08-03 16:47:22

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Replies: 2

Please help me with this 3-part question (Differential Calculus:Rules for differentiation):

Q1) Find the coordinates of the points on the curve y=x²-5x+6 at which the tangent:
A) makes an angle of 45 degrees with the X-axis.
B) is parallel to the line with the equation 3x+y-4=0
C) is perpendicular to the line with the equation 2y-x+3=0

Thanks in advance

#5 Re: Help Me ! » Please complete these exercises for me: » 2007-04-03 00:18:32

they arnt homework, I want the solutions so I can study them for a test

#6 Re: Help Me ! » Please complete these exercises for me: » 2007-04-02 22:57:45

I uploaded them to my website. They are here:
http://www.forumadminforum.com/maths1.gif
http://www.forumadminforum.com/maths2.gif
http://www.forumadminforum.com/maths3.gif
http://www.forumadminforum.com/maths4.gif

Cheers

#8 Help Me ! » Please complete these exercises for me: » 2007-04-02 21:49:25

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Replies: 6

Please help, I have no clue how to do these. I have attached two exercises. Can you help me with the following questions: I would really appreciate your help.

13(a)
7e
8d, e, f
9a, c
12a, c, f

13(b)
1h
2d, f, i
3g, h
4b, d, f, h
5
6
7b, f
8d
10c, f
11a, c
12d, f
13d, e, f

http://www.forumadminforum.com/maths1.gif
http://www.forumadminforum.com/maths2.gif
http://www.forumadminforum.com/maths3.gif
http://www.forumadminforum.com/maths4.gif

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