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sddecteb posted a comment on อนุพันธ์ของฟังก์ชันผกผัน 1.นาที ที่ 7.58 [(3y-1)(4y)'-(4y)(3y-1)'] / (3y-1)^2 จะได้ [3y-1)(4)-(4y)(3)] / (3y-1)^2 ไม่ใช่หรอครับ ถึง 12y จะตัด -12y ถ้าเป็นอย่างในคลิปมันก็จะเป็น 12y - 4 -12y^2 สิครับผมเข้าใจถูกหรือป่าว
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sddecteb just registered on the siteStream item published successfully. Item will now be visible on your stream.
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>_< ขอบคุณมากครับ ฮ่าๆ ผมกำลังขึ้น ปี 1 วิศวะ เลยหาแคลเรียนเจอเวปนี้ถูกใจมากครับ จะสนับสนุนไปเรื่อยๆนะครับ
