defence exam SSB Head Constable (Communication) 2023 Mock Test Mathematics Sequences and Series Relations between AM, GM, HM

Which of the following is true?

1
tan2 θ  + cot2 θ ≤ 2 
2
tan2 θ  + cot2 θ ≥ 2 
3
tan2 θ  + cot2 θ ≤ 1 
4
None of the above 
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