Recent content by lipun4u

f(x)=y => 3x+10 = y =>x=(y-10)/3 for every value of y there exists a value of x so its an onto function

Can u please explain me how to solve it ?

i m saying ab proper subset not subset...

i know the asnwer if A has three elements, proper subset of A will be 7 becoz all the subsets will be Null,{1},{2},{3},{1,2},{2,3},{1,3} subsets of A will be 8 BY INCLUDING {1,2,3} I asked it, becoz i m not sure ab it. Am i correct ab it ??

ya i kno onto function i also know how to implement in situation like f(x)=3x+10 but i don't know ab the above...I guess this is guanine

Determine whether f:Z x Z -> Z is onto if 1> f(m,n) = 2m-n 2> f(m,n) = |m| -|n|

Let 's Consider a set A where A={1,2,3} Can anyone tell me 1>no of subsets of A 2>no of proper subsets of A Regards, Asit