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Cos 68 × Cos 8 + …

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Cos 68 × Cos 8 + sin 68 × sin 8 Pls solve this with solution

    • Posted by Nancy Rajput 7 years, 6 months ago

    CBSE > Class 11 > Mathematics
    • 2 answers

    Nancy Rajput 7 years, 6 months ago

    Thanks

    1Thank You

    Neeta Rawat 7 years, 6 months ago

    This is from formula cos(A-B) : cosA cosB + sinA sinB So cos (68-8) Cos(60) = 1/2 -ans.

    1Thank You

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