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The expression $\tan^{2} α + \cot^{2} α$ , is

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Correct option is A

The sum of a positive real number and its reciprocal is always greater than or equal to 2. ∴ tan2⁡α+cot2⁡α≥2.

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The expression tan2⁡α+cot2⁡α, is

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The expression $\tan^{2} α + \cot^{2} α$ , is