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Mathematics 15 Online
OpenStudy (anonymous):

prove that sinx + siny + sinz - sin ( x+ y+z) = 4 *sin ( x+y/2 ) * sin ( y + z / 2) * sin ( z + x / 2 )

OpenStudy (anonymous):

please help :(

OpenStudy (xapproachesinfinity):

use sum to product identities to prove that

OpenStudy (xapproachesinfinity):

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