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41
The points, where the series solution of the Legendre differential equation \[\left( {1 - {x^2}} \right)\frac{{{d^2}y}}{{d{x^2}}} - 2x\frac{{dy}}{{dx}} + \frac{3}{2}\left( {\frac{3}{2} + 1} \right)y = 0\]        will diverge, are located at
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Answer: Option C
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42
All solutions of the equation ez = -3 are
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Answer: Option B
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43
The solution of the system of differential equations \[\frac{{dy}}{{dx}} = y - z\]   and \[\frac{{dz}}{{dx}} = - 4y + z\]   is given by (for A and B are arbitrary constants)
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Answer: Option A
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44
The value of the integral \[\int\limits_C {\frac{{{e^z}}}{{{z^2} - 3z + 2}}dz,} \]    where the contour C is the circle \[\left| z \right| = \frac{3}{2}\]  is
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Answer: Option C
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45
Inverse Laplace transform of \[\frac{{s + 1}}{{{s^2} - 4}}\]  is .
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Answer: Option D
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46
Consider the Bessel equation \[\left( {v = 0} \right),\,\frac{{{d^2}y}}{{d{z^2}}} + \frac{1}{z}\frac{{dy}}{{dz}} + y = 0.\]
Which one of the following statements is correct?
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Answer: Option A
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47
If \[F\left[ {f\left( x \right)} \right] = \int_{ - \infty }^\infty {f\left( x \right){e^{ - ikx}}dx,} \]       then \[{{\hat F}^2}\left[ {f\left( x \right)} \right]\]   is equal to
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Answer: Option A
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48
The value of the integral $$\int\limits_C {{z^{10}}dz,} $$  where C is the unit circle with the origin as the centre is
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Answer: Option A
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49
If u (x, y, z, t) = f(x + iβy - vt) + g(x - iβy - vt), where f and g are arbitrary and twice differentiable functions, is a solution of the wave equation $$\frac{{\partial {u^2}}}{{\partial {x^2}}} = \frac{{{\partial ^2}u}}{{\partial {y^2}}} = \frac{1}{{{c^2}}}\frac{{{\partial ^2}u}}{{\partial {t^2}}}$$     then β is
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Answer: Option C
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50
The average of the function f(x) = sin x in the interval (0, π) is
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Answer: Option B
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