Mathematics, 27.10.2021 01:00 dondre54

(1-cos?a) (1 + cosa
-
I +
2 sin?a-sin" a

pls help

(1-cos?a) (1 + cosa
-
I +
2 sin?a-sin a
pls help

Answers: 1

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(1-cos?a) (1 + cosa
-
I +
2 sin?a-sin" a

pls help
...