Question

If A = {0, 1, 2,-1}, then find A* A
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Answer 1

Answer:

A*= [ 1, 2 ]

Step-by-step explanation:

A=[ 0, 1, 2, -1]

A*=[ 1, 2 ]

Answer 2

Answer:

Depends upon how A is taken

Step-by-step explanation:

Let A = 0. Ans 0

Let A = 1. Ans 1

Let A = 2. Ans 4

Let A = -1. Ans 1