Write down two prime numbers whose difference is 1?
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2 and 3 are pair of prime numbers whose difference is 1.
Difference =3-2=1
The diagram represents two inequations A and B on real number lines :
(i) Write down A and B in set builder notation.
(ii) Represent A∩B and A∩B′ on two different number lines.
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".
(a) Write a pair of negative integers whose difference gives 8.
(b) Write a negative integer and a positive integer whose sum is −5.
(c) Write a negative integer and a positive integer whose difference is −3.