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Question
sec 60° − sin2 30°
Options
`2/sqrt3 − 1/4`
`1 3/4`
`1 1/2`
`2 1/4`
MCQ
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Solution
`bb1bb 3/bb4`
Explanation:
`sec 60° = 2, sin 30° = 1/2 = (1/2)^2 = 1/4`
`2 − 1/4 = (8 − 1)/4 = 7/4 = 1.75`
`7/4 = 1 3/4`
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