Exam (elaborations)
A level Maths Exam Questions with 100% Correct Answers.
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If two lines are perpendicular, what must their gradients equal to when multiplied together? Correct answer -1 What is the equation to calculate the gradient of a line? Correct answer y₂-y₁/x₂-x₁ What is the equation to calculate the length of a line? Correct answer √(y₂−y₁)^2...
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