Question

Answer 1

a: \(2042\in N;2043\in Z;2043\in Q\)

b: \(-197\notin N\)

c: \(-\dfrac{563}{91}\in Q\)

d: \(-\dfrac{7}{39}\notin N;-\dfrac{7}{39}\notin Z\)

e: \(-\dfrac{123}{117}\in Q\)

f: \(\left\{-82;-\dfrac{73}{89}\right\}\subset Q\)

h: \(-\dfrac{191}{989}\notin Z;-\dfrac{191}{989}\notin N\)

h: \(\left\{-79;-\dfrac{93}{87};-879\right\}\subset Q\)

i: \(-\dfrac{983}{915}\in Q\)

Answer 2

`a, NN`

`b, ZZ`

`c, QQ`

`d, NN, QQ`

`e, QQ`

`f, QQ`

`g, NN,QQ`

`h, QQ`

`i, QQ`

Answer 3

a) \(2042\in Q\left(N;Z\right)\)

b) \(-197\notin N\)

c) \(\dfrac{-563}{91}\in Q\)

d) \(\dfrac{-7}{39}\notin Z\left(N\right)\)

e) \(\dfrac{-123}{117}\in Q\)

f) \(\left\{-82;\dfrac{-73}{89}\right\}\subset Q\)

g) \(\dfrac{-191}{989}\notin N\left(Z\right)\)

h) \(\left\{-79;\dfrac{-93}{97};-879\right\}\subset Q\)

i) \(\dfrac{-983}{915}\in Q\)