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
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
举一反三
- 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
- 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
- 17da426f4cb2265.jpg,计算[img=23x22]17da426f58ddf0c.jpg[/img]实验命令为( ). A: f=diff(log(x),3)f=2/x^3 B: syms x; f=diff(log(x),3)f=2/x^3 C: syms x;f=diff(logx,3)f=2/x^3
- 17e0a756f3d6e2a.jpg,计算[img=23x22]17e0b849ab0b36c.jpg[/img]实验命令为( ). A: f=diff(log(x),3)f=2/x^3 B: syms x; f=diff(log(x),3)f=2/x^3 C: syms x;f=diff(logx,3)f=2/x^3
- 下列函数为偶函数的是( )。 A: \( y = e^{2x} - {e}^{ - 2x} + \cos x \) B: \( y = {\log _2} { { 1 + x} \over {1 -x}} \) C: \( y = 3{x^4} - {x^3} \) D: \( y = { { {e^x} + {e^{ - x}}} \over 2} \)