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प्रश्न
If sec θ = `1/2`, what will be the value of cos θ?
पर्याय
2
1
3
5
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उत्तर
2
Explanation:
Given: sec θ = `1/2`
Since, sec θ = `1/cosθ`
∴ `1/2 = 1/cosθ`
⇒ cos θ = 2
Thus, the value of cos θ is 2.
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= `(square + square)/(square xx square)` .....`[∵ square + square = 1]`
= `1/(square xx square)`
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