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Mathematics, 05.02.2021 17:00 maddy6882

if a + b + c is equals to 270 then prove that sin a cos b sin c + cos a sin b sin c + sin a sin b cos c = cos a cos b cos c

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if a + b + c is equals to 270 then prove that sin a cos b sin c + cos a sin b sin c + sin a sin b co...
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