exam
Maths Puzzle
Numerical Ability
I need help finding the Focus of a Parobola. The Vertex is (4,2) and the directrix is y=-3. Also if you are given the Vertex and focus can you find the directix?
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exam Other Question
Write the following equations in the form a+bi
a. i^42 - i^18
b. 1/3-i
suppose you mark 10 points on a line.How many line segments have two of these points as endpoints?