Question

b) Describe in set -builder from:-
C={1,3,5,9,15,45}​

Answer 1

Answer:

A={x is a factor of 45, x∈N }

Step-by-step explanation:

For set builder form we have to describe any relation between the terms.

here as we can se on factorising 45 we get

factors of 45 =1,3,5,9,15,45

all these terms are factors of 45

therefore

A={x is a factor of 45, x∈N }

Answer 2

Answer:

{x:x is an odd number 1<_x<_45}

Step-by-step explanation:

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