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#426 Re: Help Me ! » Question 2 :Functions 23 Dec ilmi » 2016-12-22 21:16:23

ALL ans in this Page http://www.mathsisfun.com/sets/function.html ???

#427 Help Me ! » Question 2 :Functions 23 Dec ilmi » 2016-12-22 19:36:45

Zeeshan 01
Replies: 2

Question 1:   what is  A fuction from X to Y

Question 2 :  If function from x to y is a function then y €Y is called  ??

Question 3:  The function f (x)=ax^2+bx+c has Maximum  value if ?? And Minimum Value if???

Question 4: A function  from x to y  defined by f (x)=a,for all x €X and a €Y and fixed is called
Please help and mention question no thx

#428 Help Me ! » Please explain this definition » 2016-12-22 19:22:43

Zeeshan 01
Replies: 5

A rule that assigns to each element x in X a unique element y in Y is Called a function from
X TO Y
what it saying what rule what x in X

#429 Help Me ! » Limit help » 2016-12-16 19:46:05

Zeeshan 01
Replies: 1

Limit x approach to 2             x^5-32 divide by x-2 plz help me how it solve no formula

#433 Re: Help Me ! » Trigonometry » 2016-11-17 00:56:32

And make graph easier....

#434 Re: Help Me ! » Trigonometry » 2016-11-17 00:55:31

If you try these with different values of x, you will find they give different results.  So it is important to show people which you mean when you write the algebra.   
Plese show me and put I don't understand

#435 Help Me ! » Trigonometry » 2016-11-16 17:36:48

Zeeshan 01
Replies: 7

Hi
Why cos (3x)×cos (3x) does not equal to cos (9x2)
Whay we cannot multiple it
Why we write cos square (3x)??

#437 Re: Help Me ! » Slope and inclination » 2016-11-08 02:45:05

why is x across and y up?  why are vectors written like this
Submit
and not like this
Submit

#438 Re: Help Me ! » Slope and inclination » 2016-11-07 20:09:02

Where is -83 degree in degree measure tool

#439 Re: Help Me ! » Slope and inclination » 2016-11-07 03:40:19

And alpha is -83.68 degree why we add 180 in this ans what reason

Why slope is change in y divide by change in x

#440 Re: Help Me ! » Distance bw two points » 2016-11-07 03:38:29

Thx bob after this discusion I understand
and why we don't add Bc =6+2 why take difference and
2nd question
BC is a horizontal line, so its length can be found by calculating the difference in the x coordinates of the two     it's a horizontal why take difference what done in horizontal

#441 Re: Help Me ! » Distance bw two points » 2016-11-07 01:53:28

BC is a horizontal line, so its length can be found by calculating the difference in the x coordinates of the two points. Why difference not adding why 6-2 and not 2-6

#442 Re: Help Me ! » Slope and inclination » 2016-11-07 01:50:11

Uff how to remember these formulas ex slope intersept normal slope point slope eq of straight line and alll slopes formulas slope of straight line etc

#443 Re: Help Me ! » Slope and inclination » 2016-11-07 01:48:31

,slope = -9 and aphha =tann inverse -9

#445 Help Me ! » Slope and inclination » 2016-11-07 00:34:58

Zeeshan 01
Replies: 11

Find slope and inclination  of points (3,-2)  (2,7)

#446 Re: Help Me ! » Distance bw two points » 2016-11-06 03:59:48

How ya bigger than yb??? And how Xa is bigger than Xb,

#447 Help Me ! » Distance bw two points » 2016-11-06 00:59:31

Zeeshan 01
Replies: 8

In https://www.mathsisfun.com/algebra/distance-2-points.html I don't under stand this line The horizontal distance a is (xA − xB)

The vertical distance b is (yA − yB) plz tell how horizontal distance is xa-xb how

#449 Re: Help Me ! » Vector help 1 » 2016-11-05 20:22:52

This is vector addition you do in op???

#450 Re: Help Me ! » Vector help 1 » 2016-11-05 16:17:00

Thx this method helps me but last step how op=cosai+sin. J     
From origin to p how you add oq+pq

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