Question 11 MarkReal function $f(x)=\frac{1}{x+2}$, then domain is $R -\{-2\}$.AnswerTrueView full question & answer→
Question 21 MarkIf $f: X \rightarrow R , f(x)=x^3+1$ then $f(9)=730$.AnswerTrueView full question & answer→
Question 31 MarkIf $A =\{-2,-1,0,1,2\}$ and $B =\{0,1,2,3,4,5,6\}$ and $f(x)=x^2, f: A \rightarrow B$ then the range of $f$ is $\{(0,1)\}$.AnswerFalseView full question & answer→
Question 41 MarkIf set $a$ contains $n$ elements then the number of relations defined in A is $2^{n^2}$.AnswerTrueView full question & answer→
Question 51 MarkBoth the domain and range of a real function are the set of real numbers of a subset of it.AnswerTrueView full question & answer→
Question 61 MarkIf $f: A \rightarrow B$ is a function then B is domain of $f$ and A is codomain of $f$.AnswerFalseView full question & answer→
Question 71 MarkAn element $x$ has an image $y$ under the relation R , where $(x, y) \in R$AnswerTrueView full question & answer→
Question 91 MarkIf $n(A)=p$ and $n(B)=q$ then $n(A \times B )=2^{p q}$AnswerFalseView full question & answer→
Question 101 MarkCartesian product of sets A and B is $A \times B =\{(a, b)$ : $a \in A, b \in B\}$AnswerTrueView full question & answer→