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a part of the quadratic formula that gives us information about the roots or solutions of the equation ax2 + bx + c = 0: delta = b2 - 4ac.
an outcome of an experiment, for example, a coin lands with heads facing up.
the limit of the average gradient as the change in x tends towards zero.
a simple, branched diagram that shows all the possible results when several events are combined...
the notation (standardised set of rules and symbols) that allows us to describe an interval (of...