A = {multiples of 5 between 14 and 26}. B = {odd numbers between 14 and 26}. List the members of A∪B and A∩B.
First write down explicitly what the elements of A and B are.A={15,20,25}, B={15,17,19,21,23,25}.
Remember ∪ means OR. So A ∪ B is the set of items which are in either A OR B. This is {15,17,19,21,23,25,15,20,25}.
Remember ∩ means AND. So A ∩ B is the set of items which are in both A AND B. This is {15,25}.
LP
Related Maths GCSE answers
All answers ▸(x+2)/(x-3) - (x-1)/(x+3) can be written in the form (ax+b)/(x^2-9). Work out the value of a and the value of b.
The sides of a right triangle are equal to A=3 cm, B=4 cm. The hypotenuse of a second triangle similar to the first one is 15 cm. Find sides of the second triangle.
Work out the value of (16/81)^3/4
What is completing the square?