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Obtain the rank correlation coefficient from the following data:
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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Find (i) the lines of regression (ii) coefficient of correlation for the following data.
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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Calculate the value of rank correlation coefficient from the following data regarding marks of 6 students in statistics and accountancy in a test.
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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Find the extremal of $\int\limits_{x_{0}}^{x_{1}} (2xy - y")^2)dx$
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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Optimize $z = x_{1}^2 + x_{2}^2 + x_{3}^2 - 6x_{1} - 8x_{2} - 10x_{3}$
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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Eng Maths sem 1 ques
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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Find the equation of straight line passes through the points (-4,6) and (8, -3)
engineering mathematics updated 3.9 years ago by 19bcs3866 • 10
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Reduce matrix A to normal form and find its rank where $ \\ \; \\ A=\left[ \begin{array}{cccc} 1 & 2 & 3 & 2 \\ 2 & 3 & 5 & 1 \\ 1 & 3 & 4 & 5 \end{array} \right] $
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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If f (z)= u+iv is analytic and $u + v = \frac{2 sin 2x}{e^{2y} + e^{-2y} - 2 cos 2x}$ find f (z).
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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Find a, b, c, d. e if $f (z)=(ax^2+bx^2y^2+cy^4+dx^2-2y^2)+i(4x^3y+exy^3+4xy)$ is analytic variable.
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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A radial displacement 'u' in rotating a disc at a distance 'r' from the axis is given by $\dfrac {d^2u}{dr^2}+\dfrac 1r\dfrac {du}{dr}-\dfrac u{r^2}+kr=0$ find the displacement given $u=0$
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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Using method of variation of parameters solve $\dfrac {d^2y}{dx^2}+4y =\tan 2x$
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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$\dfrac {dy}{dx}+\dfrac {4x}{x^2+1}y=\dfrac 1{(x^2+1)^3}$
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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Solve the $(D^4 + 4)y = 0$.
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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Solve $(D - 1)^2 (D^2 + 1) y = 0$
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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$\dfrac {d^2y}{dx^2}+2y=x^2e^{3x}+e^x-\cos 2x$
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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Prove that $\int\limits_0^1\dfrac {x^2}{\sqrt{1-x^4}}dx\int\limits_0^1\dfrac {dx}{\sqrt{1-x^4}}=\dfrac \pi4$
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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993
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Evaluate $\int\int_R x^3drd\theta$ over the region between the circles $r = 2\sin \theta, r = 4\sin \theta$
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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Evaluate $\int\limits_0^1\int\limits_0^{1-x}\int\limits_0^{1-x-y}\dfrac {dx\space dy\space dz}{(1+x+y+z)^3}$
engineering mathematics updated 3.9 years ago by phenjoisilab • 0
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Find (i) $L^{-1} [\log \dfrac {s^2+1}{s(s+1)}] $ (ii) $L^{-1} [\dfrac {(s+2)}{s^2-2s+17}]$
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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If $\bar r=x\bar i +y\bar j + z\bar k$, Then P.T. $\triangledown \log r =\dfrac {\bar r}{r^2}$
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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Fidn the directional derivative of $\phi =4xz^3-3x^2y^2z $ at (2,-1,2) in the direction of $2\bar + 3\bar j + 6\bar k$
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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P.T. $J_4(x) =(\dfrac {48}{x^3}-\dfrac 8x) J_1(x) -(\dfrac {24}{x^2}-1)J_0 (x) $
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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If $\bar f=(y^2-z^2+3yz-2x)\bar i +(3xz+2xy)\bar j +(3xy-2xz+2z)\bar k$. Then S.T $\bar F$ is irrational & solenoidal
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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Find value of 'P' such that function $f(z) = r^3\cos p\theta + ir^P \sin 3\theta$ is analytic function
engineering mathematics updated 3.9 years ago by krithikkm200 • 10
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