exam
Maths Puzzle
Numerical Ability
proove that square root of 2 is irrational!
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exam Other Question
factor the polynomial 4a^2-4ac+4c^2, please
Also factor 16a^2-9c^2
In Exercise 18-21, use the following information.
A migrating elephant herd started moving at a rate of 6 miles per hour. One elephant stood still and was left behind. Then this