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Sin10+sin20+sin40+sin50=sin70+sin80

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Sin10+sin20+sin40+sin50=sin70+sin80

    • Posted by Anshpreet Singh 5 months, 1 week ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Naahar Singh 5 months ago

    Make groups like sin 50 + sin20 after that sin10+sin40 Then solve RHS At the end LHS=RHS

    0Thank You

    ANSWER
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