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List of top Mathematics Questions asked in BITSAT
Minimise
$Z=\displaystyle\sum_{j=1}^{n} \displaystyle\sum_{i=1}^{m} c_{i j} \cdot x_{i j}$
Subject to
$\displaystyle\sum_{ i =1}^{ m } x _{ ij }= b _{ j }, j =1,2, \ldots \ldots n$
$\displaystyle\sum_{j=1}^{n} x_{i j}=b_{j}, j=1,2, \ldots \ldots, m$
is a LPP with number of constraints
BITSAT - 2015
BITSAT
Mathematics
Linear Programming
The angle of intersection of the two circles
$x^2 + y^2 - 2x - 2y = 0$
and
$x^2 + y^2 = 4$
, is
BITSAT - 2014
BITSAT
Mathematics
Circle
If \[ \begin{vmatrix} p & q - y & r - z \\ p - x & q & r - z \\ p - x & q - y & r \end{vmatrix} = 0, \] then the value of \(\dfrac{p}{x} + \dfrac{q}{y} + \dfrac{r}{z}\) is
BITSAT - 2014
BITSAT
Mathematics
Properties of Determinants
Let \( f:\mathbb{R} \to \mathbb{R} \) be a function defined by \( f(x) = \dfrac{x - m}{x - n} \), where \( m \neq n \). Then
BITSAT - 2014
BITSAT
Mathematics
types of functions
If \(\begin{bmatrix} \alpha & \beta \\ \gamma & -\alpha \end{bmatrix}\) is a square root of identity matrix of order 2, then
BITSAT - 2014
BITSAT
Mathematics
types of matrices
Let \[ f(x)= \begin{cases} (x-1)\sin\!\left(\dfrac{1}{x-1}\right), & x \neq 1 \\ 0, & x = 1 \end{cases} \] Then which one of the following is true?
BITSAT - 2014
BITSAT
Mathematics
Continuity and differentiability
The coefficient of \(x^4\) in the expansion of \((1 + x + x^2 + x^3)^{11}\) is:
BITSAT - 2014
BITSAT
Mathematics
permutations and combinations
If the \((2p)^{\text{th}}\) term of a H.P. is \(q\) and the \((2q)^{\text{th}}\) term is \(p\), then the \(2(p+q)^{\text{th}}\) term is:
BITSAT - 2014
BITSAT
Mathematics
Sequence and Series
\(\displaystyle \lim_{x \to 0} \left(\csc x\right)^{\frac{1}{\log x}}\) is equal to:
BITSAT - 2014
BITSAT
Mathematics
limits and derivatives
Let \( R = \{(3,3), (6,6), (9,9), (12,12), (6,12), (3,9), (3,12), (3,6)\} \) be a relation on the set \( A = \{3,6,9,12\} \). Then, the relation is:
BITSAT - 2014
BITSAT
Mathematics
types of relations
Through the vertex \(O\) of parabola \(y^2=4x\), chords OP and OQ are drawn at right angles to one another. The locus of the midpoint of PQ is
BITSAT - 2014
BITSAT
Mathematics
sections of a cone
Let \[ f(x)= \begin{cases} \dfrac{1-\sin^3 x}{3\cos^2 x}, & x < \dfrac{\pi}{2} \\ [6pt] p, & x = \dfrac{\pi}{2} \\ [6pt] \dfrac{q(1-\sin x)}{(\pi-2x)^2}, & x > \dfrac{\pi}{2} \end{cases} \] If \(f(x)\) is continuous at \(x=\dfrac{\pi}{2}\), then \((p,q)=\)
BITSAT - 2014
BITSAT
Mathematics
Continuity
A coin is tossed 7 times. Each time a man calls head. Find the probability that he wins the toss on more occasions.
BITSAT - 2014
BITSAT
Mathematics
binomial distribution
The equation of the right bisector plane of the segment joining \((2,3,4)\) and \((6,7,8)\) is
BITSAT - 2014
BITSAT
Mathematics
Plane
Consider \(\dfrac{x}{2}+\dfrac{y}{4}\ge1\) and \(\dfrac{x}{3}+\dfrac{y}{2}\le1,\; x,y\ge0\). Then number of possible solutions are
BITSAT - 2014
BITSAT
Mathematics
linear inequalities
If \(A=\begin{bmatrix}1 & 1 \\ 1 & 1\end{bmatrix}\), then \(A^{100}\) is
BITSAT - 2014
BITSAT
Mathematics
types of matrices
Find the angle between the line \[ \frac{x+1}{2}=\frac{y}{3}=\frac{z-3}{6} \] and the plane \(10x+2y-11z=3\).
BITSAT - 2014
BITSAT
Mathematics
Angle between a Line and a Plane
A bag contains \(n+1\) coins. It is known that one of these coins shows heads on both sides, whereas the other coins are fair. One coin is selected at random and tossed. If the probability that toss results in heads is \(\frac{7}{12}\), then the value of \(n\) is
BITSAT - 2014
BITSAT
Mathematics
Probability
The angle between any two diagonals of a cube is
BITSAT - 2014
BITSAT
Mathematics
Three Dimensional Geometry
Solution of differential equation \[ x^2-1+\left(\frac{x}{y}\right)^{-1}\frac{dy}{dx} +\frac{x^2}{2!}\left(\frac{dy}{dx}\right)^2 +\frac{x^3}{3!}\left(\frac{dy}{dx}\right)^3+\cdots=0 \] is
BITSAT - 2014
BITSAT
Mathematics
Differential equations
If the middle points of sides BC, CA and AB of triangle ABC are respectively D, E, F. If the position vectors of A, B, C are \(\hat{i}+\hat{j},\;\hat{j}+\hat{k},\;\hat{k}+\hat{i}\) respectively, then the position vector of the centre of triangle DEF is
BITSAT - 2014
BITSAT
Mathematics
Vector basics
The area bounded by the x-axis, the curve \(y=f(x)\) and the lines \(x=1,\;x=b\) is equal to \(\sqrt{b^2+1}-\sqrt{2}\) for all \(b > 1\). Then \(f(x)\) is
BITSAT - 2014
BITSAT
Mathematics
applications of integrals
The value of \(\lambda\), for which the lines \(3x-4y=13\), \(8x-11y=33\) and \(2x-3y+\lambda=0\) are concurrent is
BITSAT - 2014
BITSAT
Mathematics
Straight lines
Evaluate:
\[ \int \frac{1}{1+3\sin^2 x+8\cos^2 x}\,dx \]
BITSAT - 2014
BITSAT
Mathematics
Integration
The fuel charges for running a train are proportional to the square of the speed generated in miles per hour and cost $48 per hour at 16 miles per hour. The most economical speed if the fixed charges (i.e., salaries etc.) amount to $30 per hour is:
BITSAT - 2014
BITSAT
Mathematics
Maxima and Minima
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