exam
Maths Puzzle
Numerical Ability
Factor and simplify: cos²x-sin²xcos²x
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exam Other Question
solve system of equation by graphing
x+2y=6
2x+y=9
6x - 1 / 5 - 2x / 3 = 3
written as:
6x - 1 2x
------ - -- = 3
5 3