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Determine the exact value of:
sin30° + cos225° + sin150° + cos330°

  • Math -

    sin30° + cos225° + sin150° + cos330°
    = sin30° + (-cos45°) + sin30° + cos30°
    = 1/2 - 1/√2 + 1/2 + √3/2
    = 1 - 1/√2 + √3/2

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