Mathematics
Senior High
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๐ ๆฐโ A ๐
(2) (3) (5) (6) ใฎ่งฃใๆนใๆใใฆ้ ใใใใงใโฆ!
ๅฎใใใ้กใ่ดใใพใ๐๏ธ๐ฆ
MI2DXSOIIใฏ56็ดนไธญU701ใธใS2aRNAXI 2 IM 0้้
่งฃ็ญใซ่ณใ้ไธญใฎๅผใ้็จใ่จๅ
ฅใใใ
[ไปฃ | ๆนใฎๅๅใใซ็ญใใใ
(1) ๆฌกใฎไธ็ญๅผใ่งฃใใ
2zไธ6 = 7zไบ9
(2) ๆฌกใฎๅผใๅ ๆฐๅ่งฃใใใ
(ใใผ2ใกไธ2)(ใใใผ 2zๅ4)ไธ7
ไธM2ๆพๆๅใo ใจใใใจใ
่ผSI KK YUใฎ7ๆ ใๅ
จ้จไฝฟใฃใงใงใใๆๅญๅใฏไฝ้ใใใใๆฑใใใ<
ใใ. 4p=4, PC=r, C4=ใ6 ใจใใใจใ. >ใฎใจใใใ็ฏๅฒใๆฑใใใ
*ๅ2gๅ8 ใฎๅคใใ
่จ ใซใใกใใฆ ใง, 3 ่พบใฎ้ทใใใใ
ไธ้นฟๆ| 2|zไธ2| ใฎใฐใฉใใใใใ
่
ใใผ(zlzใฏ20ไปฅไธใฎ่ช็ถๆฐ) ใจใ, ้จๅ้ๅ4 ใ. C ใ
็ง) ใญใผ(ใถ|ใใใคzใฏๅฅๆฐ)ใC= (rlzEใใใคใกใฏ20 ใฎ็ดๆฐ
ใญ
ๅฝ) *ใใผ?
(2) G+1)ใผ3)(x^ - 2xไบ5)
ๆจ) 5
(4) 2520
ๆง2 <x<10
( 6)
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