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  1. If tan θ + cot θ = 2 then the value of θ is
    1. 45°
    2. 60°
    3. 90°
    4. 30°
Correct Option: A

tan θ + cot θ = 2

⇒ tan θ +
1
= 2
tan θ

tan² θ + 1
- 2
tan θ

⇒ tan²θ + 1 = 2tanθ
⇒ tan²θ – 2 tan θ + 1 = 0
⇒ (tanθ – 1)² = 0
⇒ tan θ – 1 = 0
⇒ tan θ = 1 = tan 45°
⇒ θ = 45



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