Write down the prime numbers between 90 and 120?
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Prime numbers are the natural numbers greater than 1, divisible only by 1 and themselves.
There are 6 prime numbers between 90 and 12097,101,103,107,109,113
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".
For any two sets A and B, prove the following :
(i) A∩(A′∪B)=A∩B
(ii) A - (A - B) = A∩B.
(iii) A∩(A∪B)′=ϕ
(iv) A - B =AΔ(A∪B).