Question

Q6. If there are 256 relations from set A=(4,5,6,7} to a set B, the find the number of elements of set B​

Answer 1

Answer:

Here is ur Answer

Step-by-step explanation:

ANSWER

Given, A = {1,2} and B = {3,4}.

Number of elements in set A = n(A)=2

Number of elements in set B = n(B)=2

Number of relations from A to B = 2

n(A)×n(B)

=2

2×2

=2

4

=16

Answer 2

Step-by-step explanation:

Using factor theorem x + 1 = 0. Let p(x) = (x^3 + x^2 - x - 1). Therefore, (x + 1) is a factor of (x^3 + x^2 - x - 1).

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