What term defines a man or a woman based on biological characteristic a. Sex
b. gender
c. Sexuality
d. Androgyny

When androgyny refers to mixed biological sex characteristics in humans, it often refers to intersex people. Regarding gender identity, androgynous individuals may refer to themselves as non-binary, genderqueer, or gender neutral, while others may identify as transgender men or women, or may be cisgender.

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

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hope this