Question

Write the following intervals in the set builder form. (i) (-6,0) (ii) (3, 21) (iii) [2,21] (iv) (-23,5]​

Answer 1

i) (-6, 0) - ( ), (-6), (0), (-6, 0)

ii) (3, 21) - ( ), (3), (21), (3,21)

iii) (2,21) - ( ), (2), (21), (2,21)

iv) (-23,5) -( ), (-23), (5), (-23,5)

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