bisa bro yang kiri a=4 b=9/2(a+b)^2=(a-b)(a-b)=axa-axb-axb+ (-b)x(-b) =a^2-ab-ab+b^2 =a^2-2ab+b^2 (karena -x-=+)(4-9/2)^2=(4-9/2)(4-9/2)=4x4-4x9/2-4x9/2+(-9/2)x(-9/2) =4^2-4x9+81/4 =4^2-9x4+81/4 (warna ijo ekor)disini 4^2 - 9x4 = 5^2 - 9x5, liat bagian kiri untuk membuat persamaan kuadrat penuh ia kurang ekor warna ijo, makanya kedua ruas ditambah 81/4. analisa bagian kanan juga sama. makanya 4^2-9x4+81/4 menjadi (4-9/2)^2 secara matematik bisa dibetulkan, karena pembuktian mendasar memang sama (4-9/2)^2=4^2-9x4+81/4(-1/2)^2=16-36+20,251/4=1/4 (terbukti) ya memang faktor penghubungnya harus tambah, itu menadakan sifat distributif... jadi dari kuadrat kita keluarkan menjadi tambah dan kurang.
--- On Sat, 10/15/11, Cuan Indo <[email protected]> wrote: From: Cuan Indo <[email protected]> Subject: Bls: [saham] OOT: Asah Otak 4=5 To: "[email protected]" <[email protected]> Date: Saturday, October 15, 2011, 2:46 AM Baru buka komputer di rumah, td sambil nyetir hehee -20 = -20 16 - 36 = 25 - 45 4^2 - 9x4 = 5^2 - 9x5 4^2 - 9x4 + 81/4 = 5^2 - 9x5 + 81/4 (4 - 9/2)^2 = (5 - 9/2)^2 4 - 9/2 = 5 - 9/2 4 = 5 Saya kasih tau pertamakali salahnya dimana (kata sy lho hehee) ----------------------------------------------------- (4^2) - (9x4) + (81/4) = (5^2) - (9x5) + (81/4) Perhatikan, faktor penghubungnya adl "tambah" dan "kurang", bukan "kali".. Oleh krn itu tidak bisa menggunakan kaidah (a-b)(a-b) seperti yg dicontohkan bro Mestika, jadi persamaan 4^2 - 9x4 + 81/4 = 5^2 - 9x5 + 81/4 tidak sama dengan (4 - 9/2)^2 = (5 - 9/2)^2 ---> (ini juga sy sebenarnya bingung dapetnya dr mana hehee) Sehingga pada akhirnya persamaan (4 - 9/2)^2 = (5 - 9/2)^2 ini menjadi tidak valid, dr mana saya tau ini tidak valid? karena -0,5*-0,5 itu tdk bisa dihitung. Persamaan yg awalnya valid menjadi tdk valid pasti ada penyebabnya. Kenapa persamaannya bisa menjadi tidak valid? karena pada awalnya udah salah kaprah menggunakan kaidah, jadi prosesnya udah salah dr awal, sehingga hasilnya ga valid/ga bisa dihitung/salah yaitu 4 - 9/2 = 5 - 9/2, ini ngaco bgt, udah gitu 9/2 nya seenaknya aja dicoret jadinya tinggal 4 = 5, eh buset. :) "A professional trader isolates himself from the herd and has trained himself to become a predator rather than a victim." - Tom Williams Dari: ANDIK MUSTIKA <[email protected]> Kepada: [email protected] Dikirim: Sabtu, 15 Oktober 2011 0:37 Judul: Re: [saham] OOT: Asah Otak 4=5 (4 - 9/2)^2 = (5 - 9/2)^2ini masih bener : (-1/2)^2=(1/2)^21/4=1/4mulai langkah ini yang salah, akar 1/4 itu 1/2 dan -1/2, tapi jelas 1/2 tidak sama dengan -1/2. kalau disaham ente beli 1 lot tentu tidak sama ma megang cash sejumlah itu. kalau kuadrat bisa dilaksanakan bareng2 karena hasilnya sama2 +, tapi kalau akar tidak bisa dioperasikan bareng karena hasilnya + dan - 4 - 9/2 = 5 - 9/2-1/2=1/2 4 = 5 jadi yang benar akar (4 - 9/2)^2 bisa 4 - 9/2 =dan 5 - 9/2, akar (5 - 9/2)^2 bisa , 4 - 9/2 =dan 5 - 9/2 tapi (4 - 9/2)^2 ini tidak sama dengan ini (5 - 9/2)^2 --- On Sat, 10/15/11, [email protected] <[email protected]> wrote: From: [email protected] <[email protected]> Subject: Re: [saham] OOT: Asah Otak 4=5 To: [email protected] Date: Saturday, October 15, 2011, 12:01 AM Ok2..kl contoh bro mestika sy ngerti krn dulu belajar di smp.. Tp kl contoh bro tobeno masih ga mudeng nih hehee :) Tp ya udah lah ya, ga penting, synya aja yg ga ngerti..yg penting jadinya gimana nih..beneran 4=5 nih? :) "A professional trader isolates himself from the herd and has trained himself to become a predator rather than a victim." - Tom Williams Sent from my AXIS Worry Free BlackBerry® smartphoneFrom: ANDIK MUSTIKA <[email protected]> Sender: [email protected] Date: Sat, 15 Oct 2011 14:59:07 +0800 (SGT)To: <[email protected]>ReplyTo: [email protected] Subject: Re: [saham] OOT: Asah Otak 4=5 (a-b)^2=(a-b)x(a-b)=a^2-2ab+b^2 makanya masing2 ruas ditambah 81/4 tuk tujuan itu --- On Fri, 10/14/11, tobeno <[email protected]> wrote: From: tobeno <[email protected]> Subject: Re: [saham] OOT: Asah Otak 4=5 To: [email protected] Date: Friday, October 14, 2011, 11:52 PM Saya jelasin dikit: 4 - 9/2 4 - 9/2 ----------x 4x4 - 4x9/2 - 4x9/2 + 9/2x9/2 ------------------------------+ 4^2 - 9x4 + 81/4 = (4 - 9/2)^2 "To achieve superior performance, you have to be different from the majority."From: [email protected] Sender: [email protected] Date: Sat, 15 Oct 2011 06:37:00 +0000To: <[email protected]>ReplyTo: [email protected] Subject: Re: [saham] OOT: Asah Otak 4=5 Waduh sy ga mudeng nih hehee Bisa jelasin ga darimana: 4^2 - 9x4 + 81/4 = 5^2 - 9x5 + 81/4 Jadi: (4 - 9/2)^2 = (5 - 9/2)^2 Thanks. :) "A professional trader isolates himself from the herd and has trained himself to become a predator rather than a victim." - Tom Williams Sent from my AXIS Worry Free BlackBerry® smartphoneFrom: ANDIK MUSTIKA <[email protected]> Sender: [email protected] Date: Sat, 15 Oct 2011 14:28:17 +0800 (SGT)To: <[email protected]>ReplyTo: [email protected] Subject: Re: [saham] OOT: Asah Otak 4=5 4^2 - 9x4 + 81/4 = 5^2 - 9x5 + 81/416-36+20,25=25-45+20,25+0,25=+0,251/4=1/4 Maka persamaan ini ga valid: (4 - 9/2)^2 = (5 - 9/2)^2(-1/2)^2=(1/2)^21/4=1/4 boleh aja bozz asal ndak melanggar kaidah math tuh hasilnya sama pakai hukum(a-b)^2=(a-b)x(a-b)=a^2-2ab+b^2 --- On Fri, 10/14/11, [email protected] <[email protected]> wrote: From: [email protected] <[email protected]> Subject: Re: [saham] OOT: Asah Otak 4=5 To: [email protected] Date: Friday, October 14, 2011, 11:12 PM Bukannya 4 harus dikuadratin dulu? Emang boleh dikasih bilangan lain baru dikuadratin? :) "A professional trader isolates himself from the herd and has trained himself to become a predator rather than a victim." - Tom Williams Sent from my AXIS Worry Free BlackBerry® smartphoneFrom: ANDIK MUSTIKA <[email protected]> Sender: [email protected] Date: Sat, 15 Oct 2011 14:14:19 +0800 (SGT)To: <[email protected]>ReplyTo: [email protected] Subject: Re: [saham] OOT: Asah Otak 4=5 valid bozz (-1/2)^2=(+1/2)^2 hasilnya 1/4=1/4, yang nggak valid kalau diakarin, jadi bawahnya. (4 - 9/2)^2 = (5 - 9/2)^24^2-2x4x9/2+(9/2)^2=5^2-2x5x9/2+(9/2)^2tuh kan 2 nya dicoret4^2 - 9x4 + 81/4 = 5^2 - 9x5 + 81/4 --- On Fri, 10/14/11, [email protected] <[email protected]> wrote: From: [email protected] <[email protected]> Subject: Re: [saham] OOT: Asah Otak 4=5 To: [email protected] Date: Friday, October 14, 2011, 10:56 PM Jika awalnya ini: 4^2 - 9x4 + 81/4 = 5^ - 9x5 + 81/4 Maka persamaan ini ga valid: (4 - 9/2)^2 = (5 - 9/2)^2 "A professional trader isolates himself from the herd and has trained himself to become a predator rather than a victim." - Tom Williams Sent from my AXIS Worry Free BlackBerry® smartphoneFrom: "tobeno" <[email protected]> Sender: [email protected] Date: Sat, 15 Oct 2011 02:15:48 +0000To: <[email protected]>ReplyTo: [email protected] Subject: [saham] OOT: Asah Otak 4=5 Udah tau bahwa 4=5? Buktinya: -20 = -20 16 - 36 = 25 - 45 4^2 - 9x4 = 5^2 - 9x5 Tambahkan 81/4 di ruas kanan dan kiri 4^2 - 9x4 + 81/4 = 5^ - 9x5 + 81/4 (4 - 9/2)^2 = (5 - 9/2)^2 4 - 9/2 = 5 - 9/2 4 = 5 (q.e.d.) Hm... "To achieve superior performance, you have to be different from the majority."
