class 12

Missing

JEE Advanced

Native silver metal forms a water soluble complex with a dilute aqueous solution of NaCN in the presence of

Connecting you to a tutor in 60 seconds.

Get answers to your doubts.

For $x∈(0,π),$ the equation $sinx+2$sin$x−sin3x=3$ has (A)infinitely many solutions (B)three solutions (C)one solution (D)no solution

For a point $P$in the plane, let $d_{1}(P)andd_{2}(P)$be the distances of the point $P$from the lines $x−y=0andx+y=0$respectively. The area of the region $R$consisting of all points $P$lying in the first quadrant of the plane and satisfying $2≤d_{1}(P)+d_{2}(P)≤4,$is

For a real number $α,$ if the system $⎣⎡ 1αα_{2} α1α α_{2}α1 ⎦⎤ ⎣⎡ xyz ⎦⎤ =⎣⎡ 1−11 ⎦⎤ $ of linear equations, has infinitely many solutions, then $1+α+α_{2}=$

Three randomly chosen nonnegative integers $x,yandz$are found to satisfy the equation $x+y+z=10.$Then the probability that $z$is even, is:$125 $ (b) $21 $ (c) $116 $ (d) $5536 $

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

The value of $(((g)_{2}9)_{2})_{(log)((log)9)1}×(7 )_{(log)71}$is ________.

If $Ik=1∑98 ∫_{k}x(x+1)k+1 dx,then:$$I<5049 $ (b) $I>(g)_{e}99$$I>5049 $ (d) $I<(g)_{e}99$

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