求不定积分[img=112x35]17da6538063a9e4.png[/img]； （ ）
A: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/
B: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4))/8
C: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4))
D: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/8
A: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/
B: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4))/8
C: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4))
D: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/8
举一反三
- 求不定积分[img=115x46]17da65382f8e1b9.png[/img]； （ ） A: x - (5*log(x + 1))/4 - (3*log(x - 3)) B: (5*log(x + 1))/4 - (3*log(x - 3)) C: x - (5*log(x + 1))/4 - (3*log(x - 3))/4 D: (5*log(x + 1))/4 - (3*log(x - 3))/4
- 求不定积分[img=121x54]17da653839aa6ae.png[/img]； （ ） A: log(x^2 + 3*x + 25/4)/4 + (5*atan(x/2 + 3/4))/4 B: log(x^2 + 3*x + 25/4)/4 C: (5*atan(x/2 + 3/4))/4 D: log(x^2 + 3*x + 25/4)/4 - (5*atan(x/2 + 3/4))/4
- 计算 [img=97x44]17da60e3e6579e9.png[/img]实验命令为(). A: limit(log(x^2-3)/(x^2-3*x+2),2)ans =4 B: syms x; limit(log(x^2-3)/(x^2-3*x+2),2)ans =4 C: syms x; limit(logx^2-3/(x^2-3*x+2),x,2)ans =4
- 计算[img=92x41]17da61001961fe7.png[/img]实验命令为(). A: limit(x*log(1+2/x),inf)ans =2 B: syms x; limit(x*log(1+2/x),inf)ans =2 C: syms x; limit(x*log1+2/x,inf)ans =4
- 以4，9，1为为插值节点，求\(\sqrt x \)的lagrange的插值多项式 A: \( {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) + {1 \over {24}}(x - 4)(x - 9)\) B: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) + {1 \over {24}}(x - 4)(x - 9)\) C: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x +1) + {1 \over {24}}(x - 4)(x - 9)\) D: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) - {1 \over {24}}(x - 4)(x - 9)\)