f(f(x))=4x-1,f(x)是一次函数,求f(x)
f(f(x))=4x-1,f(x)是一次函数,求f(x)
已知f(x) =4x-1,则f(2)= .
已知f(x) =4x-1,则f(2)= .
函数f(x)=x[sup]2[/]+4x-1的单调增加区间是( ). A: (-∞,-1)和(1,+∞) B: (-1,1) C: (-∞,3) D: (-2,+∞)
函数f(x)=x[sup]2[/]+4x-1的单调增加区间是( ). A: (-∞,-1)和(1,+∞) B: (-1,1) C: (-∞,3) D: (-2,+∞)
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=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|X≤1},B={X|X>-4},则A∩B=__________. A: {X|X≤1} B: {X|x>-4} C: {X|-4
A={X|X≤1},B={X|X>-4},则A∩B=__________. A: {X|X≤1} B: {X|x>-4} C: {X|-4
函数f(x)=的全部间断点为 A: x=-1及x=4 B: x=-1及x=-4 C: x=1及x=-4 D: x=1及x=4
函数f(x)=的全部间断点为 A: x=-1及x=4 B: x=-1及x=-4 C: x=1及x=-4 D: x=1及x=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: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) - {1 \over {24}}(x - 4)(x - 9)\)
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: \( - {2 \over {15}}(x - 9)(x - 1) + {3 \over {40}}(x - 4)(x - 1) - {1 \over {24}}(x - 4)(x - 9)\)
求函数$f(x)=x^4 $在$x=-1$的导数 A: $4$ B: $1$ C: $-1$ D: $-4$
求函数$f(x)=x^4 $在$x=-1$的导数 A: $4$ B: $1$ C: $-1$ D: $-4$
曲线y=x^3+x-2在点(1,0)处的切线方程是() A: y=2(x-1) B: y=4(x-1) C: y=4x-1 D: y=3(x-1)
曲线y=x^3+x-2在点(1,0)处的切线方程是() A: y=2(x-1) B: y=4(x-1) C: y=4x-1 D: y=3(x-1)
解方程:4(x﹣1)=1﹣x
解方程:4(x﹣1)=1﹣x