English, asked by Anonymous, 1 month ago

cos210°trigomerty and quadrant

Answers

Answered by cutiepayii268

2

Answer:

cos210 lies in 3rd quadrant

Explanation: cos210 a= alpha

= cos[180+a]

= cos[180+30]

= -cos30

Answered by prabh5664

2

that's your answer.

I hope it will help you.

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