Chapter 2 (Realation and functions) IMPORTANT QUESTION MATHEMATICS 11 CLASS COMMERCE.

                                                                                                                                                                   

                                                    Chapter-2

                                     Relations and function

          Important question's based on NCERT,CBSE,DOE,SUPPORT

                                          MATERIAL and so on.

                                                                                                                                       

Que.1

Draw the graph of following function and find range of 

f(x)=|x-2|+|2+x| where -3≤x≤3

   

ANSWER

Range:- [4,6]

Que 2

The relation f is defined by 

f(x)={x²,0≤x≤3:where 3x,3≤x≤10}

The realation g is defined by 

g(x)={x²,0≤x≤2 where 3x,2≤x≤10}

ANSWER

Que 3

Find the domain of the function 

f(x)=x²+2x+1/x²-8x+12.

Answer:-

Que 4

Find the domain and the range of the real function f defined by 

f(x)=√(x-1)

Answer:-

Que 5

Draw the graph of the function f :R → R defined by f (x) = x³

, x∈R.

Answer:-

Que.6:-

Define the function f: R → R by y = f(x) = x²

, x ∈ R.

What is the domain and range of this function?

Draw the graph of f.

Answer:-

                                                                                                                                            

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