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If cosα+2cosβ+3cosγ=sinα+2sinβ+3sinγ=0, then the value of sin3α+8sin3β+27sin3γ is |
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Answer» If cosα+2cosβ+3cosγ=sinα+2sinβ+3sinγ=0, then the value of sin3α+8sin3β+27sin3γ is |
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