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Question
If `sec θ = 25/7` then sin θ = ?
Options
`7/25`
`24/25`
`7/24`
`24/7`
MCQ
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Solution
`bb(24/25)`
Explanation:
`sec θ = 25/7`
⇒ `cos θ = 7/25`
∴ sin2θ = (1 – cos2θ)
= `(1 - 49/625)`
= `576/625`
⇒ `sin θ = sqrt(576/625)`
⇒ `sin θ = 24/25`
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