Let f(x) =, f (x)(n 1,.,.). Let S() b, sin nmxn=1 Calculation of S(-).
2021-09-27 15:11
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回答Compute the tangent plane equation of the surface2+cos(xy)+yz+x=0 at the points(0,1,-1)
2021-09-27 15:09
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回答Known limit lim x-arctan x =c, where k and c are constants, and c=. Compute k and.
2021-09-27 15:08
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回答Let the random variables X and Y be independent and follow normal distribution N(u,o2) and N(u, 202) respectively, where... 查看全部
2021-09-27 15:07
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回答Let the probability distribution of the two-dimensional discrete random variable (,Y) be:YX0120140110132140112012 (1)the... 查看全部
2021-09-27 15:07
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回答101 Known A= The rank of quadratic f(x1, x2, x3) =x*(ATA)x is 2.0010aa1 (1)Find the value of the real number A; (2)Find ... 查看全部
2021-09-27 15:04
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回答1a0001a0 Let A=001a0a001 (1)Calculate the determinant Al: (2)When the real number a has anyvalue, the equations Ax =B ha... 查看全部
2021-09-27 15:03
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回答Given that L is the segment of the curve in the first quadrant from the point(0,0) to the point (2,0)along the circle x2... 查看全部
2021-09-27 15:03
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回答Known curve L: (x=f(t), y=/ (OS ) where f(t) has a continuous derivative, and f()2 =O, f(t)>(0<). If the distance ... 查看全部
2021-09-27 15:01
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回答Let L be the intersection of the cylinder+y =1 and the plane z =x+y, and the direction from the positive direction to th... 查看全部
2021-09-27 15:00
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