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    Question

    If tan θ + cot θ = 5, find the value of tan²θ +

    cot²θ.
    A 21 Correct Answer Incorrect Answer
    B 23 Correct Answer Incorrect Answer
    C 25 Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    Using the identity tan²θ + cot²θ = (tan θ + cot θ)² - 2,  we get 25 - 2 = 23. Correct answer: b

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