f（x）=3次根（2x-x2）平方的導數..3次根包含了（2x-x2）平方

f（x）=3次根（2x-x2）平方的導數..3次根包含了（2x-x2）平方

即
f（x）=（2x-x^2）^（2/3）
所以
f '（x）=2/3 *（2x-x^2）^（2/3 -1）*（2x-x^2）'
=2/3 *（2x-x^2）^（-1/3）*（2-2x）
=（4-4x）/ 3*（2x-x^2）^1/3
把下列句子變為複數
1、This is a watermelon.
2、It is a yellow shirt.
3、That's my watch.
1.These are watermelons.
2.They are yellow shirts.
3.Those are my watches.
These are watermelons.
They are yellow shirts.
Those are my watches.
30和45的最大公約數是最小公倍數是
最大公約數是15最小公倍數是90
將下列句子變為複數
He is your drother.
This is his box.
She is a teacher.
That is a bag.
They are your brothers
These are their boxes
They are teachers
Those are bags
感謝你的信賴，
They are your brothers.
These are their boxes.
They are teachers.
Those are bags.
12和30的最大公因數是______，最小公倍數是______.
12=2×2×3，30=2×3×5，所以12和30的最大公因數是：2×3=6，最小公倍數是：2×3×2×5=60.故答案為：6，60.
將句子變成複數句
1.This is a book.
2.That isn't an egg.
3.IS this a book？Yes，it is.4.picture is very good
1.These are books.2.That are not any egg.3.Aer these some books？Yes，these are.4.Pictures are very good.
12和54的最大公因數是（）最小公倍數是（）.
最大公因數6，最小公倍數108
麻煩採納，謝謝！
將下麵的英語句子變成複數形式
一、this is a potato.二、the boy is playing hide and seek.三、there is a flower in the garden.四、it is a bird.五、there is a sheep.
1.these are photos 2.the boys are playing hide and seek 3.these are flowers in the garden 4.they are birds 5.there are some sheep希望可以幫助你，
1）These are photos. 2）The boys are playing hide and seek. 3）There are flowers in the garden. 4）They are birds. 5）There are sheep.（sheep單複數同形）若覺得滿意請採納，O（∩_∩）O謝謝
12和18的最大公約數是______，最小公倍數是______.
12=2×2×3，18=2×3×3，所以12和18的最大公因數是2×3=6；12和18的最小公倍數是2×2×3×3=36.故答案為：6，36.
數學知識中的複數的起源
複數的提出，誰是主要發現者，總之關於複數的歷史均可
複數（一）數學名詞.由實數部分和虛數部分所組成的數，形如a＋bi .其中a、b為實數，i為“虛數組織”，i的平方等於－1.a、b分別叫做複數a＋bi的實部和虛部.當b＝0時，a＋bi＝a為實數；當b≠0時，a＋bi又稱虛數；當b≠0…