?(2)◆以下哪个函数的图像不是直线?(74yx? ?).◆设函数xxysin?,则该函数是(偶函数)◆计算不定积分xxxd)1(2??解:xxxd)1(2??=Cxxx??????32)(132)d(1)1(29◆若(ln ) 12f x x? ?,则( )df xdx?(xe).◆设)(xF?在],[ba上连续,则3 ( )baF x dx???(3 ( ) 3 ( )F b F a?)◆xxf?)(,其定义域是0?x,其导函数的定义域是0?x.(对)◆若0)(???dxxfaa,则)(xf可能为奇函数.(对)◆若函数)(xf在点ax?处连续,则)(limxfax?可能不存在.(错)◆函数ln(1 ),03( ), 0xxxf xk x???????????,在0?x处连续,则?k(13)◆产q个单位的收益R为201.0200)(qqqR??.求生产50个单位产品时的收益,边际收益.解:2(50) 200(50) 0.01(50) 9975R? ??(50) 9975199.550 50R? ?◆函数4 ln(1 2 )y x x? ??的单调增区间是(1( , )4? ??)◆若0)(???dxxfaa,则)(xf必为奇函数.(错)◆5341dxx???(4ln 2?)◆函数1( ) 2 4xf x?? ?的反函数??)(1xf(2log ( 4) 1x? ?)◆如果在公共的定义域上有)()(xgxf???,则在公共的定义域上必有(( ) ( )f x g x C? ?).◆设函数f在闭区间[3, 6]上连续,在开区间(3, 6)上可导.如果(3) (6)f f?,那么(对于某些3 6c? ?,0)(??cf).
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