1) 1.5 sin 2a/cos ( a-1.5П) 2) cos a + cos 2a/sin a - cos a​

Question

1) 1.5 sin 2a/cos ( a-1.5П) 2) cos a + cos 2a/sin a - cos a​

Answer 1

1)-3cos(a)

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Answer 2

1)-3cos(a)

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