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526
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Argon is used in are welding because of its
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Related Questions
Let
$O$
be the origin, and
$OX,OY,OZ$
be three unit vectors in the direction of the sides
$QR$
,
$RP$
,
$PQ$
, respectively of a triangle PQR.
$∣OX×OY∣=$
$s∈(P+R)$
(b)
$sin2R$
$(c)sin(Q+R)$
(d)
$sin(P+Q)˙$
The function
$y=f(x)$
is the solution of the differential equation
$dxdy +x_{2}−1xy =1−x_{2} x_{4}+2x $
in
$(−1,1)$
satisfying
$f(0)=0.$
Then
$∫_{23}f(x)dx$
is
For each positive integer
$n$
, let
$y_{n}=n1 ((n+1)(n+2)n+n˙ )_{n1}$
For
$x∈R$
let
$[x]$
be the greatest integer less than or equal to
$x$
. If
$(lim)_{n→∞}y_{n}=L$
, then the value of
$[L]$
is ______.
The common tangents to the circle
$x_{2}+y_{2}=2$
and the parabola
$y_{2}=8x$
touch the circle at
$P,Q$
andthe parabola at
$R,S$
. Then area of quadrilateral
$PQRS$
is
Circle(s) touching x-axis at a distance 3 from the origin and having an intercept of length
$27 $
on y-axis is (are)
Let
$a,b,andc$
be three non coplanar unit vectors such that the angle between every pair of them is
$3π $
. If
$a×b+b×x=pa+qb+rc$
where p,q,r are scalars then the value of
$q_{2}p_{2}+2q_{2}+r_{2} $
is
A rectangular sheet of fixed perimeter with sides having their lengths in the ratio
$8:15$
is converted into anopen rectangular box by folding after removing squares of equal area from all four corners. If the total area of removed squares is 100, the resulting box has maximum volume. Then the length of the sides of the rectangular sheet are24 (b) 32 (c) 45 (d) 60
Coefficient of
$x_{11}$
in the expansion of
$(1+x_{2})_{4}(1+x_{3})_{7}(1+x_{4})_{12}$
is 1051 b. 1106 c. 1113 d. 1120
Related Questions
Let
$O$
be the origin, and
$OX,OY,OZ$
be three unit vectors in the direction of the sides
$QR$
,
$RP$
,
$PQ$
, respectively of a triangle PQR.
$∣OX×OY∣=$
$s∈(P+R)$
(b)
$sin2R$
$(c)sin(Q+R)$
(d)
$sin(P+Q)˙$
The function
$y=f(x)$
is the solution of the differential equation
$dxdy +x_{2}−1xy =1−x_{2} x_{4}+2x $
in
$(−1,1)$
satisfying
$f(0)=0.$
Then
$∫_{23}f(x)dx$
is
For each positive integer
$n$
, let
$y_{n}=n1 ((n+1)(n+2)n+n˙ )_{n1}$
For
$x∈R$
let
$[x]$
be the greatest integer less than or equal to
$x$
. If
$(lim)_{n→∞}y_{n}=L$
, then the value of
$[L]$
is ______.
The common tangents to the circle
$x_{2}+y_{2}=2$
and the parabola
$y_{2}=8x$
touch the circle at
$P,Q$
andthe parabola at
$R,S$
. Then area of quadrilateral
$PQRS$
is
Circle(s) touching x-axis at a distance 3 from the origin and having an intercept of length
$27 $
on y-axis is (are)
Let
$a,b,andc$
be three non coplanar unit vectors such that the angle between every pair of them is
$3π $
. If
$a×b+b×x=pa+qb+rc$
where p,q,r are scalars then the value of
$q_{2}p_{2}+2q_{2}+r_{2} $
is
A rectangular sheet of fixed perimeter with sides having their lengths in the ratio
$8:15$
is converted into anopen rectangular box by folding after removing squares of equal area from all four corners. If the total area of removed squares is 100, the resulting box has maximum volume. Then the length of the sides of the rectangular sheet are24 (b) 32 (c) 45 (d) 60
Coefficient of
$x_{11}$
in the expansion of
$(1+x_{2})_{4}(1+x_{3})_{7}(1+x_{4})_{12}$
is 1051 b. 1106 c. 1113 d. 1120
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