Question

Class:- 11 PCMB Question / Subject:- Maths

Qn:- Please give the roster form of the set

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Answer 1

Step-by-step explanation:

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Answer 2

Answer:

(i)

We have to write the set of all y such that y is of the form 1/2n where n is natural number and is ≤5 . Since, n is a natural number, it will start from 1 so n will hold the values 1, 2, 3, 4 and 5.

Required set in roaster form will be :-

B = { 1/2, 1/4, 1/6, 1/8 , 1/10 }

(ii)

We have to write the set of all x such that x is a perfect cube and 27 < x < 216. x will hold the following values:-

4³ = 64

5³ = 125

Since only the cube of 4 and 5 is in the required range, x will hold the values 64 and 125.

Required set in the roaster form will be :-

C = { 64, 125}