Question

How many different product of two numbers are there can be obtained from the numbers {-2-1 0 1 2}?

Answer 1

Answer:

the answer is {2,0,-2,-4,-1}

Answer 2

There are 10 different ways in which we can make the product of 2 numbers

Step-by-step explanation:

We have given the numbers { -2,-1,0,1,2]

There are total 5 numbers

We have to find the number of different product of two numbers

For product of two numbers we need exactly two numbers which we have to choose from 5 numbers

So number of product of two different numbers will be equal to $^5C_2=\frac{5!}{2!(5-2)!}=\frac{5!}{2!3!}=\frac{5\times 4\times 3!}{2\times 3!}=10$

So there are 10 different way in which we can make product of 2 different numbers

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