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Question

Mathematics Question on Sets

Which of the following are functions ?

A

(x,y):y2=4ax,x,y∈→R\\{(x,y):y^2=4ax, x, y\in\rightarrow R\\}

B

(x,y):y=[x],x,y,∈R\\{(x,y):y=[x],x,y,\in R\\}

C

(x,y):x2+y2=1,x,y,∈R\\{(x,y):x^2+y^2=1,x,y,\in R\\}

D

(x,y):x2−y2=1,x,y,∈R\\{(x,y):x^2-y^2=1,x,y,\in R\\}

Answer

(x,y):y=[x],x,y,∈R\\{(x,y):y=[x],x,y,\in R\\}

Explanation

Solution

Answer (b) (x,y):y=[x],x,y,∈R\\{(x,y):y=[x],x,y,\in R\\}