ДАЮ 99Б 1)sin2a/cos^a*tga 2)-2cosa+2sina^a/1-cosa 3)1-cos(2пи-2a)/1-cos^a ...

Question

ДАЮ 99Б

1)sin2a/cos^a*tga

2)-2cosa+2sina^a/1-cosa

3)1-cos(2пи-2a)/1-cos^a

4)cos^2a/1-cos^2a*tg^2a

Answer 1

Решение.................

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