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What is the value of cos^2 …

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What is the value of cos^2 67°- sin^2 23°

    • Posted by Ardra Jayaprakash 6 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Mansi Gupta 6 years, 11 months ago

    Sin^2(90-67)° -Sin^2 23° Sin^2 23°-Sin^2 23° 0

    1Thank You

    Harsh Garg 6 years, 11 months ago

    Ans is 0 As Cos²67°-cos²67° = 0 [Sin(90-theta)=cos theta]

    1Thank You

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