Сократите дробь ... 1. 1-sin2a /sina-cosa 2.sina+cosa/1+sin2a 3....

Question

Сократите дробь ...

1. 1-sin2a /sina-cosa

2.sina+cosa/1+sin2a

3. 1+sin2a/sina+cosa

4.sina-cosa/1-sin2a

Answer 1

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