kใฏๅฎๆฐใจ่ใใฆ
x,y,zใฎ้ฃ็ซๆน็จๅผใ่งฃใใฐใใใจๆใใพใ
Mathematics
Senior High
๐โโ๏ธ้ซ1ใฎๅ้กใงใ
ๅ็ใฎใใใใใใใฎๅพใใฉใใใฆx=k/2ใฎใใใซใชใใใงใใใใใ
ๅ็ดใชใใจใชใฎใใใใใพใใใใใฉใใใฆใๅใใใพใใใ
ใใใใใ้กใใใพใ๏ผ
ใฟใผใซใผใผใใญ ใใผใฟใผใจใใใจ
ใกใผใใผ2ใ, ไธใฃใผใใผ3ใซใ, ใกใผใฟไธ2ใ ใใใใ *=ใ, ใใใผใผใใ ใ
ใพใ(SSMไธญใพ
aa 2eEๆ= 2 0 ๅฟ 2ใใ
2 2
ใผ ไธ3ๅคช9ๅฉฆใผ3ใ2
ใผ ๅคง2ๅ9ใ2ๅ9ใ2
3ใ 3่จ
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