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Question 200005
JEE Mathematics · Easy

Trigonometry: Reciprocal Relations MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Reciprocal RelationsEasyQuestion 200005

Question

If sec θ = 2, then cos θ =
  1. A
    2
  2. B
    1/2
    Correct
  3. C
    √3/2
  4. D
    1/√2

Correct answer

1/2

Explanation

sec θ = 1/cos θ, so cos θ = 1/sec θ = 1/2.

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