Ответ:
1)sqr(2/2)*sqr(3/2)-sqr(2/2)*1/2
2)sqr(3/2)*srq(2/2)-1/2*srq(2/2)
3)sina+B*-sina*B-cosa+B*sina-B
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Ответ:
1)sqr(2/2)*sqr(3/2)-sqr(2/2)*1/2
2)sqr(3/2)*srq(2/2)-1/2*srq(2/2)
3)sina+B*-sina*B-cosa+B*sina-B