設x=sint,因此（-π/2≤t≤π/2）
則原式變?yōu)椤襙(-π/2)^(π/2)▒cost d_sint =∫_(-π/2)^(π/2)▒〖（cost ）^2 〗 d_t
=∫_(π/(-2))^(π/2)▒(1+cos2t)/2 d_t
=(t/2+sin2t/4)｜_((-π)/2)^(π/2)
=π/2
∫1(上標)-1(下標)√(1-x²)dx=?
∫1(上標)-1(下標)√(1-x²)dx=?
數(shù)學人氣：455 ℃時間：2019-12-06 20:09:55
優(yōu)質(zhì)解答
我來回答
類似推薦
- ∫1(上標)-1(下標)√(1-x²)dx=?詳細的過程.
- ∫1(上標)-1(下標)(x+√(1-x²))²dx=?詳細過程.
- .∫1(上標)-1(下標)(x+√(1-x²))²dx=?
- d/dx ∫ dt/√1+t^4 上標是x^3 下標是x^2
- ∫1(上標)-1(下標)(1/x^2)dx=-1/x=-2為什么是錯的?
- 函數(shù)f(x)=sinx-cosx^2的最小值是?
- 英語翻譯
- I took my grandpa to the hospital this morning,_____ I missed the first class.
- So crazy
- 方差是各個數(shù)據(jù)與平均數(shù)之差的平方的平均數(shù)
- 函數(shù)y=f(x)與它反函數(shù)y=f^-1(x)怎么讀?
- These are photos of my families.Look at them 改錯
猜你喜歡
- 1平面與平面重合,是否屬于平行一類?那重合的兩直線,也屬于平行一類的嗎?
- 2非洲每年因饑餓死亡的人數(shù)及現(xiàn)在饑餓人口數(shù)量拜托各位了 3Q
- 3decide to do sth.還=什么
- 4(7/8)o you think of london?B:5.____london is one of the liveliest cities
- 5啤酒可以托運嗎
- 6邊長為2√6的等邊三角形的中心到一邊的距離為?
- 7please give your hand to help me
- 8已知2的X次方等于3的Y次方等于6的Z次方不等等于1,證明X分之一加Y分之一等于Z分之一.
- 9幫我做做?
- 10機械分析天平TG628A的使用說明書
- 11in winter ,we wear warm coats to protect our bodies_.
- 12( )was most importance to her ,she told me,was her family it this what as