For each of the following setsz, state with reasons, whether it is an emoty or not:
`B = {b|b in N, 2b +1 is even}`

For each of the following setsz, state with reasons, whether it is an emoty or not: A = {x|x in I, x^2 is not positive }

State with reason, which of the following sets ae empty : B = {x | 5x -2 = 0, x in N }

Consider two events A and B such that P(A) = (1)/(4),P((B)/(A)) = (1)/(2),P((A)/(B)) = (1)/(4) . For each of the folloiwng statement , which is ture. I. P(A'//B') = (3)/(4) II. The events A and B are mutually excluise. III. P(A//B) +P(A//B) =1

Write the relations in roster form. State domain and range. R = {(a, b)/ a in N , b = = 2 -a, 1leale6}

The equation of the tangent to (x/a)^n + (y/b)^n = 2 at (a,b)