jarrett1336
jarrett1336
19-07-2016
Mathematics
contestada
sin23cos27-cos23sin27
Respuesta :
princegn
princegn
19-07-2016
sin(A-B) = sinAcosB - cosAsinB
=
sin23cos27- cos23sin27
= sin(23-27)
= sin(-4)
=-sin4
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