New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Prove the identity: tan² θ + 1 = sec²

    θ
    A True Correct Answer Incorrect Answer
    B False Correct Answer Incorrect Answer
    C Cannot be determined Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    ATQ, We know that sin² θ + cos² θ = 1 Dividing both sides by cos² θ, we get: (sin² θ / cos² θ) + (cos² θ / cos² θ) = 1 / cos² θ tan² θ + 1 = sec² θ

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