exam
Maths Puzzle
Numerical Ability
How do you simplify a rational expression like: t^2-25/t^2+t-20, whats the answer?
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exam Other Question
Which is a perfect square?
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The rectangle ABCD is inscribed in the circle with center (0,0) and radius 6. The x-coordinate of the vertex A is expressed as x. Then express the area S of the rectangle ABCD as