Write down the prime numbers between 1 and 20?
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Prime numbers are the natural numbers greater than 1, divisible only by 1 and themselves.
Prime numbers between 1 and 20 are 2,3,5,7,11,13,17,19
The point A(-3, 2) is reflected in the x-axis to the point A'. Point A' is then reflected in the origin to point A".
(i) Write down the co-ordinates of A".
(ii) Write down a single transformation that maps A onto A".
The point A(4, 6) is first reflected in the origin to point A'. Point A' is then reflected in the y-axis to point A".
The roster form of A = {Prime numbers between 10 and 20} is ___.