Question

Cot(-1110 degree) I ned answer for trigonometry

Answer 1

Answer:

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Answer 2

Cot(-1110 degree) =  -√3

We know that

• cot (360°) = cot 0 = 0
• cot (360°*n) = 0 where n is a positive integer
• cot (360°*n + Ф) = cot Ф
• tan and cot are odd functions and cot (-Ф) = - cot Ф

So, cot (1080°) = 0 = cot (360°*3) = 0

1. cot (-1110°)
2. = -cot (1110°)
3. = -cot (1080 + 30)
4. = -cot (30°)
5. = -√3