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6
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1
answer
17k
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1
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Evaluate the integral $\int_0^{1+i}(x^2 - iy)dz$ along the path y = x.
engineering mathematics updated 5.9 years ago by teamques10 ★ 70k
2
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1
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42k
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1
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Show that G=[1,-1,i,-i] is a group under usual multiplication of complex number.
engineering mathematics updated 5.9 years ago by parviagrawal100 • 0
3
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1
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12k
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1
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Discuss the stationary points for Maxima and Minima of x3 + xy2 - 12x2 - 2y2 + 21x + 10
engineering mathematics updated 4.3 years ago by pg1118329 • 0
5
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2
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1.6k
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2
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Find the matrix A, if adj A = \[\ \left[\begin{array}{ccc}-2 & 1 & 3 \\-2 & -3 & 11 \\2 & 1 & -5\end{array}\right]\]
engineering mathematics updated 4.3 years ago by rucha6862 • 0
2
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1
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4.9k
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1
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Find the Z-transform of f(k) =ak, k≥0.
engineering mathematics updated 4.8 years ago by teamques10 ★ 70k
8
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1
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28k
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1
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Obtain half range sine series for $f(x) = x^2$ 0<x<3
engineering mathematics updated 6.4 years ago by teamques10 ★ 70k
5
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2
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34k
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2
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Nine items of a sample had the following values 45 ,47 ,50 ,48 ,47 ,49 ,53 ,51.Does the mean of 9 items differ significantly from the assumed population mean 47.5 ?
engineering mathematics updated 4.3 years ago by teamques10 ★ 70k
4
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2
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11k
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2
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Solve $(D^2-1)y=x^2sin3x$ .
engineering mathematics updated 4.1 years ago by teamques10 ★ 70k
2
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1
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2.6k
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1
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Apply Cayley-Hamilton theorem for $A = \begin{bmatrix} \ 1 & 2 \\ \ 2 & -1 \\ \end{bmatrix}$ and deduce that $A^8=625I$
engineering mathematics updated 4.1 years ago by teamques10 ★ 70k
0
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1
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914
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1
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non-Singular Matrices P & Q
engineering mathematics updated 4.0 years ago by rjran106 • 20
4
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1
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30k
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1
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If y = cos x.cos 2x.cos 3x then find its nth order derivative
engineering mathematics updated 4.8 years ago by teamques10 ★ 70k
4
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1
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18k
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1
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If z = tan(y+ax) + (y-ax)(3/2) \[\dfrac{\partial^2z}{\partial x^2} =a^2 \dfrac{\partial^2z}{\partial y^2}\]
engineering mathematics updated 4.8 years ago by teamques10 ★ 70k
2
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1
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25k
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1
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Examine the function f(x,y) = y2 + 4xy + 3x2 + x3 for extreme values.
engineering mathematics updated 4.3 years ago by pg1118329 • 0
6
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1
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41k
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1
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Find the Fourier series expansion for f(x)=|x|, in (-π, π).
engineering mathematics updated 4.8 years ago by teamques10 ★ 70k
1
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1
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4.7k
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1
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If f(z)= (ax4 + bx2y2 + cy4 + dx2 - 2y2) + i(4x3y - exy3 + 4xy) is analytic, find the constants a,b,c,d,e
engineering mathematics updated 4.8 years ago by teamques10 ★ 70k
4
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1
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10k
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1
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Reduce the matrix to normal form and hence find its rank.
engineering mathematics updated 4.4 years ago by yashbeer ★ 11k
3
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1
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2.7k
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1
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Maximum and minimum values
engineering mathematics updated 4.4 years ago by abhi022mahajan • 0
1
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1
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743
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1
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Eng Maths sem 1 ques
engineering mathematics updated 4.1 years ago by krithikkm200 • 10
1
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1
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1.5k
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1
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Find the rank of the matrix by reducing into normal form
engineering mathematics updated 4.1 years ago by 19bcs3866 • 10
1
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1
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5.6k
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1
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show that the vector F = (y+z)i +(z+x)j +(x+y)k is solenoidal
engineering mathematics updated 4.1 years ago by yerasylmakulbe671 • 10
1
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1
answer
505
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1
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Inverse Laplace theorem
engineering mathematics updated 4.1 years ago by yerasylmakulbe671 • 10
1
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2
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5.4k
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2
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Records pertaining to monthly number of job related injuries at Chemical plant were being studied by an NGO. The values for the past 100 months were as follows:
engineering mathematics updated 4.1 years ago by krithikkm200 • 10
7
votes
1
answer
42k
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1
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Differential equation Solve $(2xy^4e^y + 2xy^3+ y)dx + (x^2y^4e^y- x^2y^2- 3x) dy = 0$
engineering mathematics updated 4.1 years ago by krithikkm200 • 10
8
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1
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33k
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1
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Jacobians : If $ u = \frac{x+y}{1-xy} , \; v \; = \; tan^{-1}x \; + \; tan^{-1}y , \; Find \frac{\partial (u,v)}{\partial (x,y)} $
engineering mathematics updated 5.9 years ago by teamques10 ★ 70k
5
votes
1
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26k
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1
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Solve the $[D^4-4D^3+8D^2-8D+4]y=0$
engineering mathematics updated 4.3 years ago by teamques10 ★ 70k
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