Class 8 Exponents and Radicals
37 videos • 1,441 views • by Mathematics Learning About this Playlist: It contains videos for self learning on the chapter exponents and radicals. C8 Ch 3 Exponents and Radicals Activity- Visualising exponents https://youtu.be/cK5X0P7Xp2s Recall, laws of integral exponents https://youtu.be/fNnRAHZcEpg Rational numbers as exponents https://youtu.be/i7DvZ0zJuns Verification of laws of rational exponents (law 1 to 3) https://youtu.be/BT5e__ZTn2k Verification of laws of rational exponents continued (law 4 and 5) https://youtu.be/ZNb2LjZvu8o WS 2 Q1 Discussion Expressing as radicals https://www.geogebra.org/m/XmQ9rZ3G https://youtu.be/xNCRg-eSMaI Brain Teasers Q1(B)a) Express (13/21)^2/5 as a radical. b) find the value of (81)^-3/4 c) Simplify 5 x 16 ^3/4 d)Evaluate (0.000064)^5/6 e) Solve for x if 3^(x-1) = 1/27 https://youtu.be/qpzRYso1O4k Brain Teasers Q2 https://youtu.be/XfhzFJItnlE Brain Teasers Q3 https://youtu.be/coD35GpuL2I Brain Teasers Q4, 5 https://youtu.be/Tnvhjj-UQzA HOTS Q1 https://youtu.be/QrJJ97et1x8 HOTS Q2 https://youtu.be/epRDG1R8X4Y Enrichment Q2 https://youtu.be/aN61BMqqq8o How to write in exponential form?How to express as a radical? https://youtu.be/kRTYOMn3RQo 4^x + 4^ (x-1) + 4^(x-2) = 21/16 x (2)^(3x+3). Find x and then evaluate 2x+3 https://youtu.be/A7DSMNDxcrU Simplify and find x :( a) 3^(3x-5)= 1/9^x (b) 2^(2x+4)= 4^-(2x-1) (c) 3^(3x-3) = 9^(2x-1) (d) 6^(x-2) = 1 https://youtu.be/5Ji1fE7YVbo Evaluate (4^x + 4^(x-1) + 4^(x+1) )/ (4^x - 4^(x-1) - 4^(x+1) https://youtu.be/IBrqQJmgLqE Find x if 5^x + 5^(x+1)- 5^(x-1) = 29/5 x 5^ 2x+3) https://youtu.be/lhkSTmg_NH0 Find y if 3^y + 3^(y-1) + 3^(y+1) = 13/3 x 3 ^(4y+2) https://youtu.be/Ltj9Sm_V1jY Simplify a^(b-c) x a^(c-a)xa^(a-b) https://youtu.be/zyRPSiOgpZs Simplify (3^-5 x 10^-5 x 125 x 7^2)/(5^-7 x 6^-5 x 7^3x25) https://youtu.be/e9C0CdpnMCg Distinguish between 2^3^2 and (2^3)^2 and find the difference between them. https://youtu.be/Yy6yYU_dzkk Multiply together and using the laws of exponents, simplify : https://youtu.be/cVMAPdr0X0w Simplify 2^2^2^2 - ((2^2)^2)^2 https://youtu.be/Zsym_HeUgIE