急問!!F3指數記數法

2006-11-10 4:06 am
以下提目..麻煩解答
(y^n+1)/(y^-2)^n
thank you

回答 (3)

2006-11-10 4:13 am
✔ 最佳答案
(y^n + 1) / (y^-2)^n
= (y^n + 1) / y^-2n
=y^ (n+1-2n)
=y^ (1-n)
2006-11-10 4:19 am
係 Y的N+1次方定係 Y的N次方再加1?
係Y的N+1次方:

題目 = y^(n+1)x(y^2n) ←哩度係因為 (y^ -2)^n = 1/y^2n 再被 y^n+1 除所以上下顛倒
= y^(n+1+2n)
= y^(3n+1)


係Y的N次方再+1:

題目 = (y^n + 1) x (y^2n)
= y^3n + y^2n
2006-11-10 4:17 am
(y^n+1)/(y^-2)^n
=(y^n+1)(y^-2n)
=(y^n+1)xy^2n
=(y^n+1+2n)
=y^3n+1

2006-11-09 20:23:42 補充:
上面答你問題個哥弟三部錯左係應該:由=y^ (n+1-2n)改做=y^【n+1-(-2n)】

2006-11-09 20:30:16 補充:
我自己最尾哥部爭d野應該係:=y^(3n+1)


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