also known as the y value so I could say y=2x or f(x)= 2x same thing just using functional notation
your next question is what is dependent and independent variables. I am Dyslexic but know math and which is which confuses me. but one can vary the x value while y depends on which x you use. also

Marc

enjoy your work and good luck

Marc

I actually wanted to ask another questions on sets if u dont mind please?

Inembo

I have so many questions on set and I really love dis app I never believed u would reply

Inembo

Hmm go ahead and ask you got me curious too much conversation here

Adri

am sorry for disturbing I really want to know math that's why
*I want to know the meaning of those symbols in sets*
e.g n,U,A', etc pls I want to know it and how to solve its problems

Inembo

and how can i solve a question like dis
*in a group of 40 students, 32 offer maths and 24 offer physics and 4 offer neither maths nor physics , how many offer both maths and physics*

Inembo

next questions
what do dy mean by (A' n B^c)^c'

Inembo

The sets help you to define the function. The function is like a magic box where you put inside stuff(numbers or sets) and you get out the stuff but in different shapes (forms).

Adri

I dont understand what you wanna say by (A' n B^c)^c'

Adri

(A' n B (rise to the power of c)) all rise to the power of c

Inembo

Ok so the set is formed by vectors and not numbers

Adri

A vector of length n

Adri

But you can make a set out of matrixes as well

Adri

I I don't even understand sets I wat to know d meaning of all d symbolsnon sets

Inembo

Wait what's your math level?

Adri

am having big problem understanding sets more than other math topics

Inembo

So f:R->R means that the function takes real numbers and provides real numer. For ex. If f(x) =2x this means if you give to your function a real number like 2,it gives you also a real number 2times2=4

Adri

pls answer this question
*in a group of 40 students, 32 offer maths and 24 offer physics and 4 offer neither maths nor physics , how many offer both maths and physics*

Inembo

If you have f:R^n->R^n you give to your function a vector of length n like (a1,a2,...an) where all a1,.. an are reals and gives you also a vector of length n... I don't know if i answering your question. Otherwise on YouTube you havr many videos where they explain it in a simple way

Adri

Actually you have 40 - 4 =36 who offer maths or physics or both.

Adri

I know its 20 but how to prove it

Inembo

You have 32+24=56who offer courses

Adri

56-36=20 who give both courses... I would say that

Adri

solution: In a question involving sets and Venn diagram, the sum of the members of set A + set B - the joint members of both set A and B + the members that are not in sets A or B = the total members of the set. In symbolic form n(A U B) = n(A) + n (B) - n (A and B) + n (A U B)'.

Mckenzie

In the case of sets A and B use the letters m and p to represent the sets and we have:
n (M U P) = 40; n (M) = 24; n (P) = 32; n (M and P) = unknown; n (M U P)' = 4

Mckenzie

Now substitute the numerical values for the symbolic representation
40 = 24 + 32 - n(M and P) + 4
Now solve for the unknown using algebra:
40 = 24 + 32+ 4 - n(M and P)
40 = 60 - n(M and P)
Add n(M and P), as well, subtract 40 from both sides of the equation to find the answer.

Mckenzie

40 - 40 + n(M and P) = 60 - 40 - n(M and P) + n(M and P)
Solution:
n(M and P) = 20

Mckenzie

Simpler form:
Add the sums of set M, set P and the complement of the union of sets M and P then subtract the number of students from the total.

Mckenzie

n(M and P) = (32 + 24 + 4) - 40
= 60 - 40
= 20

Mckenzie

-1/x^2, use the chain rule

Andrew

what is domin in this question

noman

all real numbers . except zero

Roha

please try to guide me how?

Meher

what do u want to ask

Roha

the domain of the function is all real number excluding zero, because the rational function 1/x is a representation of a fractional equation (precisely inverse function). As in elementary mathematics the concept of dividing by zero is nonexistence, so zero will not make the fractional statement

Mckenzie

a function's answer/range should not be in the form of 1/0 and there should be no imaginary no. say square root of any negative no.
(-1)^1/2

Roha

domain means everywhere along the x axis. since this function is not discontinuous anywhere along the x axis, then the domain is said to be all values of x.

Andrew

Derivative of a function

Waqar

right andrew ... this function is only discontinuous at 0

Roha

of sorry, I didn't realize he was taking about the function 1/x ...I thought he was referring to the function x^3-2x.

Andrew

yep...it's 1/x...!!!

Roha

true and cannot be apart of the domain that makes up the relation of the graph y = 1/x. The value of the denominator of the rational function can never be zero, because the result of the output value (range value of the graph when x =0) is undefined.

Mckenzie

Therefore, when x = 0 the image of the rational function does not exist at this domain value, but exist at all other x values (domain) that makes the equation functional, and the graph drawable.

Mckenzie

Roha are u A Student

Lutf

for MSc chemistry... simple formulas of integration

aparna

I don't understand integration

aparna

integration is so simple not typical..

funny

tell me any questions about integration then i will solve.

funny

we use integration for whole values or for sum of values any there are some basic rule for integration..

funny

I just want formulas of integration

aparna

value of log ax
cot-x cos-x

aparna

there are many formulas about integration

funny

more then one formula are exist about integration..

funny

so I want simple formulas Because I'm studying MSc chem...Nd have done bsc from bio...

aparna

I am M.sc physics now i am studying in m.phil

funny

I will send you basic formula for integration after two mint first of all i write then i will send you.

funny

send me your messenger id where i can send you formulas about integration because there is no option for image sending..

funny

integration f(X) dx
this is basic formula of integration sign is not there you can look integration sign in methematics form...
and f(X) my be any function any values

funny

you send me your any ID where i can send you information about integration

funny

send me SMS at this ID
Adnan sathi Adnan sathi

funny