Question

And ain't I a woman?

Answer 1

The main purpose of the use of repetition in these lines is to force the audience to examine their ideas about African American women. 

Answer 2

Answer:

It forces the audience to examine their ideas about African American women.

Explanation:

This is taken from a speech meant to reflect the experience of an African American woman. Many who worked as hard as men and served as slaves just as African American men did. The author,  Sojourner Truth, born in 1797 under the name of Isabella Baumfree in Swartekill, New York, was an African-American abolitionist and women's rights activist.