Answer:
Stereotype threat
Step-by-step explanation:
Stereotype threat is a phenomenon which tends to make an individual act in ways in order to conform to a belief that may not be really true about some certain category of people.
In the case of Brooke as stated in the question above, as a result of being exposed to the belief and notion of people who considered women to be generally poor at complex mathematics, she eventually conforms to this over-generalized negative belief about women. This affected her self-confidence and performance as she tends to fulfill the negative expectations people have against women regarding complex mathematics.