Mathematics
高校生
(圖一題目 圖二答案 圖三我寫的)
(完整題目為求f’(x))
為什麼我寫的是錯的
(把xy=cos(x)^(1/2)變成y=(cos(x)^(1/2))/x的部分)
超級感謝
(2) √x= cos(xy)'
(m-)-(S)(1)
x=>
TC
4
(2)由x=cos'(xy)→(xy=cos),微分整理得 y'
又計算知
元
y
=0,故
4
”
4
=
4
04-1
1.1-0)
1
=
sin √x
2√√x
-y
-4
=
3.
2
31-r
外元
4
⇒y=x
y'(x)=
2x
√x = cos (xy) = xy = cos √x
(sin√x)x-((os√√x) |
2
y(
(一元).
16
元
-0
回答
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