Which expressions represent the area of triangle ABC ? Choose three correct answers.
A
the fraction with numerator A squared b sine open paren 60 degrees close paren and denominator 2B
A c sine open paren 60 degrees close parenC
the fraction with numerator A b sine open paren 60 degrees close paren and denominator 2D
1 half A squared sine open paren 60 degrees close parenE
1 half b c sine open paren 60 degrees close paren