English, asked by Anonymous, 2 months 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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