Prove that the tangent at any point of the circle is perpendicular to the radius through the point of contact.
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Equal roots occur when the discriminant (b² – 4ac) equals zero in a quadratic equation. This makes both roots identical meaning the parabola touches the x-axis at exactly one point. The value of both roots can be found using -b/2a ...
A quadratic equation has the standard form ax² + bx + c = 0 where a b and c are numbers and a is not equal to 0. We can solve it using the quadratic formula -b ± √(b² – ...
An equation shows that two mathematical expressions have the same value using an equals sign (=). It can involve numbers variables functions and mathematical operations to express relationships. Equations help us solve problems find unknown values and describe mathematical patterns ...
The quadratic formula solves ax² + bx + c = 0 where a b and c are numbers and a ≠ 0. The solution is x = [-b ± √(b² – 4ac)] / (2a). The ± means to calculate both ...