已知函数f(x)= asint(a^2- x^2),求

答：a^2-x^2 =a^2-a^2sint^2 =a^2cost^2 ∫√（a^2-x^2）dx =∫acost*acostdt =a^2∫cost^2dt =a^2∫（cos2t+1）/2dt =a^2/4∫(cos2t+1)d2t =a^2/4*(sin2t+2t)将x=asint代回，得：∫√（a^2-x^2）dx=x√(a^2-x^2)/2+a^2*arcsin(x/a)/2+C（C为常数...

2024-05-20 回答者: 风林网络手游平台 1个回答

∫( cos2t+1)/2dt的积分表达式是什么

答：a^2-x^2 =a^2-a^2sint^2 =a^2cost^2 ∫√（a^2-x^2）dx =∫acost*acostdt =a^2∫cost^2dt =a^2∫（cos2t+1）/2dt =a^2/4∫(cos2t+1)d2t =a^2/4*(sin2t+2t)将x=asint代回，得：∫√（a^2-x^2）dx=x√(a^2-x^2)/2+a^2*arcsin(x/a)/2+C（C为常数...

2024-05-25 回答者: 风林网络手游平台 1个回答

∫(sin2t+1)/2ds=?

答：a^2-x^2 =a^2-a^2sint^2 =a^2cost^2 ∫√（a^2-x^2）dx =∫acost*acostdt =a^2∫cost^2dt =a^2∫（cos2t+1）/2dt =a^2/4∫(cos2t+1)d2t =a^2/4*(sin2t+2t)将x=asint代回，得：∫√（a^2-x^2）dx=x√(a^2-x^2)/2+a^2*arcsin(x/a)/2+C（C为常数...

2024-05-25 回答者: 风林网络手游平台 1个回答

∫√( a^2- x^2) dx=什么?

答：a^2-x^2 =a^2-a^2sint^2 =a^2cost^2 ∫√（a^2-x^2）dx =∫acost*acostdt =a^2∫cost^2dt =a^2∫（cos2t+1）/2dt =a^2/4∫(cos2t+1)d2t =a^2/4*(sin2t+2t)将x=asint代回，得：∫√（a^2-x^2）dx=x√(a^2-x^2)/2+a^2*arcsin(x/a)/2+C（C为常数...

2024-06-10 回答者: 风林网络手游平台 1个回答

已知函数f(x)= asint^2,求积分

答：a^2-x^2 =a^2-a^2sint^2 =a^2cost^2 ∫√（a^2-x^2）dx =∫acost*acostdt =a^2∫cost^2dt =a^2∫（cos2t+1）/2dt =a^2/4∫(cos2t+1)d2t =a^2/4*(sin2t+2t)将x=asint代回，得：∫√（a^2-x^2）dx=x√(a^2-x^2)/2+a^2*arcsin(x/a)/2+C（C为常数...

2024-06-10 回答者: 风林网络手游平台 1个回答

已知a^2- x^2=1,求∫√( a^2- x^2) dx。

答：a^2-x^2 =a^2-a^2sint^2 =a^2cost^2 ∫√（a^2-x^2）dx =∫acost*acostdt =a^2∫cost^2dt =a^2∫（cos2t+1）/2dt =a^2/4∫(cos2t+1)d2t =a^2/4*(sin2t+2t)将x=asint代回，得：∫√（a^2-x^2）dx=x√(a^2-x^2)/2+a^2*arcsin(x/a)/2+C（C为常数...

2024-06-10 回答者: 风林网络手游平台 1个回答

求不定积分∫√( a^2- x^2)的值域?

答：a^2-x^2 =a^2-a^2sint^2 =a^2cost^2 ∫√（a^2-x^2）dx =∫acost*acostdt =a^2∫cost^2dt =a^2∫（cos2t+1）/2dt =a^2/4∫(cos2t+1)d2t =a^2/4*(sin2t+2t)将x=asint代回，得：∫√（a^2-x^2）dx=x√(a^2-x^2)/2+a^2*arcsin(x/a)/2+C（C为常数...

2024-05-20 回答者: 风林网络手游平台 1个回答

已知x= asint求积分值域是什么意思?

答：a^2-x^2 =a^2-a^2sint^2 =a^2cost^2 ∫√（a^2-x^2）dx =∫acost*acostdt =a^2∫cost^2dt =a^2∫（cos2t+1）/2dt =a^2/4∫(cos2t+1)d2t =a^2/4*(sin2t+2t)将x=asint代回，得：∫√（a^2-x^2）dx=x√(a^2-x^2)/2+a^2*arcsin(x/a)/2+C（C为常数...

2024-06-06 回答者: 风林网络手游平台 1个回答 1

求∫(a^2- x^2) dx的值域?

答：a^2-x^2 =a^2-a^2sint^2 =a^2cost^2 ∫√（a^2-x^2）dx =∫acost*acostdt =a^2∫cost^2dt =a^2∫（cos2t+1）/2dt =a^2/4∫(cos2t+1)d2t =a^2/4*(sin2t+2t)将x=asint代回，得：∫√（a^2-x^2）dx=x√(a^2-x^2)/2+a^2*arcsin(x/a)/2+C（C为常数...

2024-05-30 回答者: 风林网络手游平台 1个回答

求积分∫√(a^2- x^2) dx的值域是多少?

答：a^2-x^2 =a^2-a^2sint^2 =a^2cost^2 ∫√（a^2-x^2）dx =∫acost*acostdt =a^2∫cost^2dt =a^2∫（cos2t+1）/2dt =a^2/4∫(cos2t+1)d2t =a^2/4*(sin2t+2t)将x=asint代回，得：∫√（a^2-x^2）dx=x√(a^2-x^2)/2+a^2*arcsin(x/a)/2+C（C为常数...

2024-05-20 回答者: 风林网络手游平台 1个回答