(3)曲线 =sqrt (4ax-{x)^2} 在点 (a,sqrt (3)a) 处的曲率为 ()-|||-(A) dfrac (1)(a) (B)a (C) dfrac (1)(2a) (D)2a

dfrac (1)(2)-|||-C .dfrac (sqrt {2)}(2)-|||-D .dfrac (sqrt {3)}(2)

2.求曲线 ^dfrac (2{3)}+(y)^dfrac (2{3)}=(a)^dfrac (2{3)} 在点 (dfrac (sqrt {2)}(4)a,d

2.求曲线 ^dfrac (2{3)}+(y)^dfrac (2{3)}=(a)^dfrac (2{3)} 在点 (dfrac (sqrt {2)}(4)a,d

[题目]-|||-求曲线 ^dfrac (2{3)}+(y)^dfrac (2{3)}=(a)^dfrac (2{3)} 在点 (dfrac (sqrt {2)

lim _(xarrow 4)dfrac (sqrt {1+2x)-3}(x-4)= (-|||-A dfrac (2)(3) .-|||-B 2-|||-C

[题目]求椭圆 dfrac ({x)^2}(4)+dfrac ({y)^2}(9)=1 在点 (1,dfrac (3sqrt {3)}(2)) 处的法线方-||

lim _(xarrow 4)dfrac (sqrt {2x+1)-3}(sqrt {x-2)-sqrt (2)}=..

int_(1)^sqrt(3) dfrac(d x)(x^2 sqrt(1+x^2))$ \int_{1}^{\sqrt{3}} \dfrac{d x}{x^{

[题目]设 (x)=sqrt (1+{ln )^2x} 则 (e)=()-|||-A、 dfrac (sqrt {2)}(4)-|||-B、 dfrac (sq

(8)函数 =dfrac ({x)^2}(sqrt {1-{x)^2}} 在区间 [ dfrac (1)(2),dfrac (sqrt {3)}(2)] 上的