I agree with you that this checking method could be more efficient while I believe the teacher also tried to explain the gist from various perspectives.
@hiko3549Ай бұрын
nice
@tse4620Ай бұрын
Let f(2x-1) - f(x-2) = (x-1)(x-5) Put x = 5 work but x = 1 not work, so A is incorrect, thus C is correct.
@AlexDiverxuАй бұрын
How could u know for SURE that the value of f(2x-1) - f(x-2)=f(1)-f(-1) when x=1 NOT 0
@loeric1020Ай бұрын
他不用 sure! 因題目問 ‘must be divisible’ !就係因為佢唔 sure,所以佢唔揀 A
pdf 搞掂,準備逐個 send, 發現 youtube 只有 reply 冇 message ... 辛苦你地快手係google form 度擺低 聯絡方式 今次好random 冇仔細計過過,下次(如有)會安排好啲!
@ssssnfn11826 ай бұрын
倍大左個3:2比例小心d好喎😏😏
@NixonChanMath6 ай бұрын
邊度?
@Herman-gx9kk6 ай бұрын
@@NixonChanMath64
@hongningsuen13486 ай бұрын
1. Construction of FH to form 2 pairs of similar triangles (double deck ABC & FBH, hour-glass BCG & HFG) 2. Double deck similar triangles with side ratio 1:2 Hence FH:AE= 1.5:3 3. To have integers for all horizontal side ratios BC:FH:AE = 10:3:6 4. Trapezium BCHF has top:bottom ratio 10:3. Hence 4 triangles of trapezium dissected by diagonals has area ratios 10^2:10x3:10x3:3^2 = 100(top):30(left):30(right):9(bottom) Top + left = 1/4 of whole parallelogram. Hence parallelogram has 4 x (100 + 30) = 520 parts Left + bottom = triangle BFH = 1/4 of triangle ABE. Hence ABE has 4x(30 + 9) = 156 parts. Quadrilateral AFHE = triangle ABE - triangle BFH has 156 - 39 = 117 parts Quadrilateral AFGE with given area = quadrilateral AFHE + triangle FGH (bottom) has 117 + 9 = 126 parts Quadrilateral AFGE gives actual area: ratio area = 42:126 = 1:3 5. Quadrilateral CDEG = parallelogram ABCD - triangle FBC - quadrilateral AFGE Hence number of parts = 520 - 130 - 126 = 264 parts Actual area = 264 x (1/3) = 88
@rickychoy10306 ай бұрын
請問這個Program 的 size 是多小?
@NixonChanMath6 ай бұрын
110
@makisyee6 ай бұрын
有用
@NixonChanMath6 ай бұрын
多謝支持!請盡快到 bit.ly/Nx-GetProg 入紙拎Prog! 😃
@hofungchow98036 ай бұрын
有用
@NixonChanMath6 ай бұрын
多謝支持!請盡快到 bit.ly/Nx-GetProg 入紙拎Prog! 😃
@TKH-yj9up6 ай бұрын
Useful❤😊
@NixonChanMath6 ай бұрын
Glad you think so! 多謝支持!請盡快到 bit.ly/Nx-GetProg 入紙拎Prog! 😃