计算并输出9的阶乘。 jx=1 n=1 do while jx=jx*n enddo 9!=’+’1*2*3*4*5*6*7*8*9=’+’
计算并输出9的阶乘。 jx=1 n=1 do while jx=jx*n enddo 9!=’+’1*2*3*4*5*6*7*8*9=’+’
设\(D = \left\{ {(x,y)\left| { { x^2} + {y^2} \le 9,x \ge 0,y \ge 0} \right.} \right\}\),则\(\int\!\!\!\int\limits_D {(x + 3y)} d\sigma = \)______
设\(D = \left\{ {(x,y)\left| { { x^2} + {y^2} \le 9,x \ge 0,y \ge 0} \right.} \right\}\),则\(\int\!\!\!\int\limits_D {(x + 3y)} d\sigma = \)______
【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]
【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]
设D是由\( {x^2} + {y^2} \le 1 \) ,\( x \ge 0 \) ,\( y \ge 0 \) 所围区域,则\( \int\!\!\!\int\limits_D {x{y^2}} dxdy \) =( ) A: \( {1 \over 5} \) B: \( {1 \over {15}} \) C: \( {2 \over {15}} \) D: 1
设D是由\( {x^2} + {y^2} \le 1 \) ,\( x \ge 0 \) ,\( y \ge 0 \) 所围区域,则\( \int\!\!\!\int\limits_D {x{y^2}} dxdy \) =( ) A: \( {1 \over 5} \) B: \( {1 \over {15}} \) C: \( {2 \over {15}} \) D: 1
设随机变量 $X\sim B(2,p),Y\sim B(3,p)$,若 $P\{X\ge 1\}=\displaystyle\frac{5}{9}$,则 $P\{Y\ge 1\}=$ ______ . (要求:填分数)
设随机变量 $X\sim B(2,p),Y\sim B(3,p)$,若 $P\{X\ge 1\}=\displaystyle\frac{5}{9}$,则 $P\{Y\ge 1\}=$ ______ . (要求:填分数)
坩埚膨胀序数以1/2为单位,共有()序数。 A: 0—9 B: 1/2—9 C: 1—9 D: 1—8
坩埚膨胀序数以1/2为单位,共有()序数。 A: 0—9 B: 1/2—9 C: 1—9 D: 1—8
语句填空:下列 for循环语句将输出: 0 1 2 0 1 2 0 1 2 for( i=1; i<=9; i++ ) printf("%2d", ——— );
语句填空:下列 for循环语句将输出: 0 1 2 0 1 2 0 1 2 for( i=1; i<=9; i++ ) printf("%2d", ——— );
下列向量组中,( )是线性无关向量组。 A: (1, 1, 0), (0, 2, 0), (0, 0, 3) B: (1, 2), (3, 0), (5, 1) C: (2, 6, 0), (3, 9, 0), (0, 0, 2) D: (1, 2), (--3, 0), (5, 1)
下列向量组中,( )是线性无关向量组。 A: (1, 1, 0), (0, 2, 0), (0, 0, 3) B: (1, 2), (3, 0), (5, 1) C: (2, 6, 0), (3, 9, 0), (0, 0, 2) D: (1, 2), (--3, 0), (5, 1)
设X ~ N(2, 9)则Y = (X – 2 )/9 ~ N(0, 1).
设X ~ N(2, 9)则Y = (X – 2 )/9 ~ N(0, 1).
Sets: Aam/a,b,c/:m,n;EndsetsData: M,n=2 3 1 9 0 8;Enddata下列说法错误的是 A: m(1)=2,n(1)=9 B: m(1)=2,n(2)=9 C: m(2)=1,n(2)=9 D: m(3)=0,n(3)=8
Sets: Aam/a,b,c/:m,n;EndsetsData: M,n=2 3 1 9 0 8;Enddata下列说法错误的是 A: m(1)=2,n(1)=9 B: m(1)=2,n(2)=9 C: m(2)=1,n(2)=9 D: m(3)=0,n(3)=8