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| Name | Verify that x3+y3+z3-3xyz=1/2(x+y+z) [(x-y)2+(y-z)2+(z-x)2] | Ex 2.5 class 9 [Q12] |
| Video Uploader | Video From R&H Academy |
| Upload Date | This Video Uploaded At 22-09-2020 13:30:02 |
| Video Discription | Exercise 2.5 class 9 Verify that x3+y3+z3-3xyz=1/2(x+y+z) [(x-y)2+(y-z)2+(z-x)2] or verify x^3+y^3+z^3-3xyz=1/2(x+y+z) (x-y)^2+(y-z)^2+(z-x)^2 Identity📝: x3 + y3 + z3 – 3xyz = (x + y + z)(x2 + y2 + z2 – xy – yz – zx) or x^3 + y^3 + z^3 – 3xyz = (x + y + z)(x^2 + y^2 + z^2 – xy – yz – zx) Revise✍🏻: Polynomials https://www.youtube.com/playlist?list=PLL9aw61jSpCp18_cdgUDHnRsj7RP6H_JO x cube + y cube identity https://youtu.be/4Q-i2YGZSxg Factorise each of the following: (i) 8a^3 + b^3 + 12a^2 b + 6ab^2 (iii) 27 – 125a^3 – 135a + 225a^2 (v) 27p^3 – 1/216 – 9/2 p^2 + 1/4p https://youtu.be/EhbofBav5Tc #class9maths #polynomials #identities |
| Category | Education |
| Tags | verify that x3+y3+z3-3xyz=1/2(x+y+z) [(x-y)2+(y-z)2+(z-x)2] | verify x3+y3+z3-3xyz=1/2(x+y+z) (x-y)2+(y-z)2+(z-x)2 | prove that x3+y3+z3-3xyz=1/2(x+y+z) (x-y)2+(y-z)2+(z-x)2 | x3+y3+z3-3xyz=1/2(x+y+z) (x-y)2+(y-z)2+(z-x)2 | verify x^3+y^3+z^3-3xyz=1/2(x+y+z) (x-y)^2+(y-z)^2+(z-x)^2 | x3+y3+z3-3xyz formula proof | x3y3z3-3xyz |
