Question

write the following sets in roster form A=x:x is a natural greather than 50but smaller than 100​

Answer 1

Answer:

i) A = {x: x is a natural number greater than 50 but smaller than 100}

⇒ Natural numbers greater than 50 are 51, 52, 53… and smaller than 100 are … 97, 98, 99.

∴ A = {51, 52, 53 … 97, 98, 99}

(ii) B = {x: x is an integer, x2 = 4}

⇒ Given x2 = 4

⇒ x = √4

∴ x = ±2

∴ B = {+2, -2}

(iii) D = {x : x is a letter in the word “LOYAL”}

∴ D = {L, O, Y, A}

Step-by-step explanation:

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