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Question
cos2 45° + sin2 60° + sin2 30° = ______.
Options
1
`1 1/4`
`1 1/2`
`1 1/3`
MCQ
Fill in the Blanks
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Solution
cos2 45° + sin2 60° + sin2 30° = `underlinebb(1 1/2)`.
Explanation:
`cos^2 45° = 1/2, sin^2 60° = 3/4, sin^2 30° = 1/4`
`1/2 + 3/4 + 1/4 = 3/2 = 1 1/2`.
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