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411

Centuries: 4th century - 5th century - 6th century

Decades: 360s 370s 380s 390s 400s - 410s - 420s 430s 440s 450s 460s

Years: 406 407 408 409 410 - 411 - 412 413 414 415 416


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Quadratic formula

... two different solutions x, both of which are real. (Geometrically, this means that the parabola intersects the x-axis in two points.) If the discriminant is negative, ...

 
 
 
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