UPSC NDA I 2011 Mathematics Paper

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Question : 57 of 120

Marks: +1, -0

Which one of the following statements is correct?

sin230∘,sin245∘,sin260∘ are in GP
cos230∘,cos245∘,cos260∘ are in GP
cot230∘,cot245∘,cot260∘ are in AP
tan230∘,tan245∘,tan260∘ are in GP

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