### Evaluate your understanding of basic mathematics concepts

Here you are given 11 very simple questions on basic mathematics you learn in your O/L studies.

You must answer the questions by in the given space in simple precise short form preferably in one sentence or maximum of two sentences if really needed.

You may take your own time. But typically it should take less than 10-15 minutes.

Face the test in Sinhala.

Answer:Use to calculate unknown values which has some mathematical relationships.
Answer:It is an Different/alternative way of writing indices/powers.
eg: c = ab  =>  logac = b
Answer:Set is a collection of elements.
Properties of sets
1. Order of the elements must not be important.
2. Duplicate elements are not allowed.
Answer:The solutions are the values that satisfy by all the given equations.
OR
Coordinates of the common intersection point of all the lines.
Answer:The set of total possible context/interest for given scenarios.
Answer:Events that can not happen at the same time.
If A and B are mutually exclusive events, then P(A U B)= P(A) + P(B)
Answer:Given the length of one side and an angle of a rectangular triangle, to find the length of other sides.
OR
Given two sides of a rectangular triangle, to find the angles.
Answer:If one event do not influence/effect the other event, those are independent events.
If A and B are independent events, the P(A ∩ B) = P(A) * P(B)
Answer:Mathematics is the study of abstract topics such as quantity (numbers), structure, space, and change. (Or somewhat similar answer)
Answer:There are situations where we can not determine the result (examples: 0/0, ∞/∞ , ∞ - ∞ etc.) using conventional mathematical concepts.
In those situations we can use the concept of limit to get the correct result.
Two main applications of calculus are differentiation and integration.