【判断题】【消耗次数:1】
设函数f(x)=ln(1/x)-ln2,则dx=(-1/x-1/2)dx
正确
错误
参考答案:
复制
纠错
相关题目
【判断题】 设函数f(x)=ln(1/x)-ln2,则dx=(x-1/2)dx
①  正确
②  错误
【判断题】 设函数f(x)=ln(1/x)-ln2,则dx=(-1/x)dx
①  正确
②  错误
【判断题】 设函数f(x)=ln(1/x)-ln2,则dx=xdx
①  正确
②  错误
【单选题】 设函数f(x)=ln(3x+1)+√(5-2x)+arcsinx的定义域是( )
①  (-1/3,5/2)
②  (-1,5/2)
③  (-1/3,1)
④  (-1,1)
【单选题】 函数f(x)=ln(x+1),求函数定义域
①  x>-1
②  x>1
③  x>0
④  x<-1
【判断题】 1/x^2 dx=d(1/x)
①  正确
②  错误
【判断题】 1/x dx=-d(1/x^2)
①  正确
②  错误
【判断题】 ∫1/x2 dx=1/x+C
①  正确
②  错误
【判断题】 ∫1/1+x^2 dx=arctanx
①  正确
②  错误
【单选题】 设函数f(x)=e^x (x≠0),那么f(x+1 )*f(x+2 )为( )
①  f(x+1)+f(x+2)
②  f(x+1+x_2)
③  f(x+1* x+2)
④  f(x+1/x+2)
随机题目
【单选题】 Twenty people were _______ wounded in the air crash.
①  quickly
②  wrongly
③  bitterly
④  seriously
【单选题】 Evidence came up _____ specific sounds are recognized by babies as young as 6 months old.
①  what
②  that
③  which
④  why
【单选题】 As a result of careless washing the jacket _____ to a child’s size.
①  compressed
②  shrank
③  dropped
④  decreased
【单选题】 Two thousand dollars ______ enough for the car.
①  being
②  were
③  are
④  is
【单选题】 Would you like some more coffee? There’s still _______ left.
①  a few
②  few
③  a little
④  1ittle
【单选题】 ____________ I’m 20.
①  How are you?
②  How old are you?
③  Where are you from?
④  May I have your name?
【单选题】 Only when one is ______ of one’s getting behind is one more likely to catch up.
①  critical
②  aware
③  visual
④  effective
【单选题】 The boy is not happy at the new school. He has _________ friends there.
①  few
②  a few
③  little
④  a little
【单选题】 The hospital bed is no longer ______ by his wife because she is fine now.
①  overlooked
②  occupied
③  opened
④  Operated
【单选题】 The car ran over the child, but by a _____ he was unhurt.
①  wonder
②  marvel
③  miracle
④  surprise