Mathematics
Senior High
๐๏ธใฎ(2)(3)ใๅใใใพใใ๏ผ
ๆใใฆใใ ใใ๐
้โใฎ็ฌฆๅทใใใๅใใใชใใงใใ๐คทโโ๏ธ
ใผใผ
3) ๆ้ ปๅคใ4ใฎใจใ, ใถ ใฎใจใใใๅคใๆฑใ +ใ
2 ใใ ใป
(2) ใใผใฟใฎๆฐใ 15 ใง, ไธญๅคฎๅคใ 3 ใ ใใ
2ใใก3=8ใใใก=3, 1ไธ3 = 8954
ใใใใผ9ไธไบ=4 โฆ. ใ5 2
ใงใฃใฆ. 3ใใกใ5 ใใ ใกไธ3 ่ญฐ5่จ่ญฐ่ช้้ๆ
(3) ๆ้ ปๅคใ4 ใ ใใ?=} ใใค 9ใทใก ใงใใใ 6 ใณใงใงใฆG
t1N ็ใใไบคos
(โณใใ ใขใผ9ใผ/ใใใฏ | 22่ปธ ๅขPIN
ใใใฃใฆ,ใใผ5, 6, 7, 8 9 .็้ๆฌ
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