Question
Find the value of sin²33° + sin²57° + cos²48° +
cos²42°.Solution
sin²33° + sin²(90° − 33°) + cos²48° + cos²(90° − 48°)
= sin²33° + cos²33° + cos²48° + sin²48°
= 1 + 1 = 2
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Select the correct option that indicates the arrangement of the given words in the order in which they appear in an English dictionary.
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