Mathematics & Statistics
Undergraduate
求解微分,後面括弧是答案
(l)
2
2 4
y = x² cos²x
X
2
( = x² = 2x cos²x² - 4x² sin²³x)
y = (x+cosX) (1-sinX) (+7= -XX)
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謝謝你願意回答我!我在懷疑答案是不是給錯