Mathematics - GATE-CH Questions

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Calculus

GATE-CH-1994-1-b-math-1mark

1994-1-b-math

The limit of \(f(x) = x/\sin x\) as \(x\rightarrow 0\) is

GATE-CH-1997-1-1-math-1mark

1997-1-1-math

The sum of the infinite series \(\displaystyle 3 + 1 + \frac {1}{3} + \left (\frac {1}{3}\right )^2+\cdots +\left (\frac {1}{3}\right )^n\) is

GATE-CH-GATE-CH-1997-1-2-math-1mark

1997-1-2-math

\(\displaystyle \lim _{x\rightarrow \infty }\frac {x^3+1}{2x^2+80x+1}\) is

GATE-CH-1997-1-3-math-1mark

1997-1-3-math

The value of \(\displaystyle \int _0^{5\pi }(2-\sin x)dx\) is

GATE-CH-1998-1-3-math-1mark

1998-1-3-math

\(\displaystyle \lim _{x\rightarrow 0}\frac {x-\sin 2x}{x+\sin 3x}\) has the value:


[Index]


GATE-CH-1999-1-4-math-1mark

1999-1-4-math

The harmonic series \(\displaystyle \sum _{n=1}^\infty \frac {1}{n^p}\)

GATE-CH-2000-1-2-math-1mark

2000-1-2-math

For an even function \(f(x)\),

GATE-CH-2003-3-math-1mark

2003-3-math

The Taylor series expansion of the function: \(f(x) = x/(1+x)\) around \(x=0\) is

GATE-CH-2004-2-math-1mark

2004-2-math

The function \(f(x) = 3x(x-2)\) has a

GATE-CH-2006-4-math-1mark

2006-4-math

The derivative of \(|x|\) with respect to \(x\) when \(x\ne 0\) is


[Index]


GATE-CH-2008-3-math-1mark

2008-3-math

The limit of \(\dfrac {\sin x}{x}\) as \(x\rightarrow \infty \) is

GATE-CH-2011-11-math-1mark

2011-11-math

Which ONE of the following functions \(y(x)\) has the slope of its tangent equal to \(\dfrac {ax}{y}\) ? Note: \(a\) and \(b\) are real constants.

GATE-CH-2012-3-math-1mark

2012-3-math

For the function \(f(t)=e^{-t/\tau }\), the Taylor series approximation for \(t\ll \tau \) is

GATE-CH-2013-4-math-1mark

2013-4-math

Evaluate: \(\displaystyle \ \int \frac {dx}{e^x-1} \)
(Note: \(C\) is a constant of integration.)

GATE-CH-2014-4-math-1mark

2014-4-math

If \(f(x)\) is a real and continuous function of \(x\), the Taylor series expansion of \(f(x)\) about its minima will NEVER have a term containing


[Index]


GATE-EC-2018-S1-6-math-1mark

EC-2018-S1-6-math

Consider \(p(s) = s^3 + a_2 s^2 + a_1 s + a_0\) with all real coefficients. It is known that its derivative \(p'(s)\) has no real roots. The number of real roots of \(p(s)\) is

GATE-ME-2004-1-math-1mark

ME-2004-1-math

If \(x = a(\theta + \sin {\theta })\) and \(y = a(1-\cos {\theta })\) then \(\dfrac {dy}{dx}\) will be equal to

GATE-ME-2010-5-math-1mark

ME-2010-5-math

The function \(y = |2 - 3x|\)

GATE-CH-2017-1-math-1mark

2017-1-math

The value of \(\displaystyle \lim _{x\rightarrow 0}\frac {\tan (x)}{x}\) is ____________

GATE-CH-1995-2-a-math-2mark

1995-2-a-math

A function \(f(x)=12x-x^3\) has maximum value at \(x=\)


[Index]


GATE-CH-1995-2-b-math-2mark

1995-2-b-math

\(\displaystyle \lim _{x\rightarrow 0}\frac {\tanh x}{x} =\)

GATE-CH-1995-2-c-math-2mark

1995-2-c-math

The second order Taylor series expansion for a function \(f(x) = x^2\) at \(x=1\) is

GATE-CH-1995-2-d-math-2mark

1995-2-d-math

The average value of function \(f(x) = x^3\) in the interval \(0\le x\le 2\) is

GATE-CH-1997-2-2-math-2mark

1997-2-2-math

The cubic equation \(x^3-x+10=0\) has a root in the interval

GATE-CH-1997-2-3-math-2mark

1997-2-3-math

The Fourier series of the function \[ f(x) = \left \{ \begin {array}{ll} 1 & 0\le x < \pi \\ -1 & -\pi < x < 0\end {array} \right . \] extended periodically, \(f(x+2\pi )=f(x)\), is


[Index]


GATE-CH-1998-2-1-math-2mark

1998-2-1-math

The function \(z = (x-1)^2 - 2y^2\) has

GATE-CH-1998-2-3-math-2mark

1998-2-3-math

The integral \(\displaystyle \frac {dx}{x^p}\) is convergent for

GATE-CH-2000-2-1-math-2mark

2000-2-1-math

The line integral of \(\displaystyle \int _C \left \{ \frac {y}{x^2+y^2}dx - \frac {x}{x^2+y^2}dy \right \} \), where \(C\) is the unit circle around the origin traversed once in the counter-clockwise direction, is

GATE-CH-2001-2-1-math-2mark

2001-2-1-math

The function \(f(x,y) = x^2+y^2-xy-x-y+5\) has the

GATE-CH-2002-2-1-math-2mark

2002-2-1-math

The coefficient of \(x^2\) in the Taylor series of \(\cos ^2x\) about 0 is


[Index]


GATE-CH-2004-36-math-2mark

2004-36-math

Value of the integral \(\displaystyle \int _{-2}^2\frac {dx}{x^2} \) is

GATE-CH-2004-38-math-2mark

2004-38-math

The value of \(\displaystyle \lim _{x\rightarrow 9}\frac {\sqrt {x}-3}{x^2-81}\) is

GATE-CH-2005-34-math-2mark

2005-34-math

In the limit \(x\rightarrow 0\), what is the limiting value of the function \(F(x)\) given below? \[ F(x) = \frac {1-\cos (2x)}{x^2} \]

GATE-CH-2005-37-math-2mark

2005-37-math

In the domain \(-\infty <x<\infty \), the function \(y(x)=x^3e^{-x}\) has

GATE-CH-2006-23-math-2mark

2006-23-math

With \(y=e^{ax}\), if the sum \[ S = \frac {dy}{dx} + \frac {d^2y}{dx^2} + \cdots + \frac {d^ny}{dx^n} \] approaches \(2y\) as \(n\rightarrow \infty \), then the value of \(a\) is


[Index]


GATE-CH-2006-25-math-2mark

2006-25-math

The liquid surface in a cylindrical bucket of radius \(R\) rotating about its axis acquires a parabolic profile given by the equation \(y=a+br^2\), where \(y\) is the height of the liquid surface from the bottom of the bucket at a radial distance \(r\) from the bucket axis. If the liquid has density \(\rho \), then the mass of the liquid in the bucket is

GATE-CH-2007-26-math-2mark

2007-26-math

The family of curves that is orthogonal to \(xy=c\) is

GATE-CH-2008-24-math-2mark

2008-24-math

The first terms of the Taylor series expansion of \(\cos x\) about the point \(x=0\) are

GATE-CH-2009-21-math-2mark

2009-21-math

The value of the limit \[ \lim _{x\rightarrow \pi /2}\frac {\cos x}{(x-\pi /2)^3} \] is

GATE-CH-2010-30-math-2mark

2010-30-math

For a function \(g(x)\), if \(g(0)=0\) and \(g'(0)=2\), then \[ \lim _{x\rightarrow 0}\int _0^{g(x)}\frac {2t}{x}dt \] is equal to


[Index]


GATE-CH-2011-28-math-2mark

2011-28-math

The value of the improper integral \(\displaystyle \int _{-\infty }^{\infty }\frac {dx}{(1+x^2)}\)  is

GATE-CH-2012-27-math-2mark

2012-27-math

If \(a\) is a constant, then the value of the integral \(\ \displaystyle a^2\!\!\int _0^\infty \!\!xe^{-ax}dx\) is

GATE-CE-2011-28-math-2mark

CE-2011-28-math

What is the value of definite integral, \(\displaystyle \int _0^a\dfrac {\sqrt {x}}{\sqrt {x} + \sqrt {a-x}} dx\) ?

GATE-EE-2009-38-math-2mark

EE-2009-38-math

A cubic polynomial with real coefficients

GATE-ME-2004-34-math-2mark

ME-2004-34-math

The volume of an object expressed in spherical co-ordinates is given by \[I = \int _0^{2\pi } \int _0^{\pi /3} \int _0^1 r^2\sin(\phi) dr d\phi d\theta \] The value of integral is


[Index]


GATE-ME-2007-21-math-2mark

ME-2007-21-math

If \(y = x + \sqrt {x+\sqrt {x+\sqrt {x +\cdots \infty }}}\), then \(y(2)\)=?

GATE-CH-2016-29-math-2mark

2016-29-math

The Lagrange mean-value theorem is satisfied for \(f(x)=x^3+5\), in the interval \((1,4)\) at a value (rounded off to the second decimal place) of \(x\) equal to ____________

GATE-CH-2017-26-math-2mark

2017-26-math

For the initial value problem \[ \frac {dx}{dt} = \sin (t), \qquad x(0) = 0 \] the value of \(x\) at \(t=\pi /3\), is ____________

GATE-CH-1994-2-a-math-1mark

1994-2-a-math

The Taylor's series expansion of \(f(x)\) around \(x=a\) is ------------------------

GATE-CH-1994-2-b-math-1mark

1994-2-b-math

For a differential function \(f(x)\) to have a maximum, \(\dfrac {df}{dx}\) should be ------------------------

GATE-CH-1994-2-d-math-1mark

1994-2-d-math

The integral of \(x\sin x\) is ------------------------


[Index]


Last Modified on: 03-May-2024

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