1+ cosAcosB + cosBcosC + cosCcosA
16.(cosA + cosB + cosC) + cosAcosBcosC
bđt lượng giác
Started By mileycyrus, 02-04-2011 - 20:25
#1
Posted 02-04-2011 - 20:25
mileycyrus
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1+ cosAcosB + cosBcosC + cosCcosA 16.(cosA + cosB + cosC) + cosAcosBcosC
1+ cosAcosB + cosBcosC + cosCcosA
16.(cosA + cosB + cosC) + cosAcosBcosC
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