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QJEE MAIN
If the mean and variance of the data 65,68,58,44, 48, 45, 60, α,β,60 where α>β are 56 and 66.2 respectively, then $\alpha^2+\beta^2$ is equal to
JEE MainMathematicsEasy
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QJEE MAIN 2024
Two marbles are drawn in succession from a box containing 10 red, 30 white, 20 blue and 15 orange marbles, with replacement being made after...
JEE MainMathematicsEasy
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QJEE MAIN
A rectangular loop of sides 12cm and 5cm, with its sides parallel to the x-axis and y-axis respectively moves with a velocity of 5cm/s in...
JEE MainPhysicsHard
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QJEE-Main 2024
Let $C: x^2+y^2=4$ and $C^{\prime}: x^2+y^2-4 \lambda x+9=0$ be two circles. If the set of all values of $\lambda$ so that the circles C and...
JEE MainMathematicsHard
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QJEE MAIN 2024
Let M denote the median of the following frequency distribution.
Then 20 M is equal to :
JEE MainMathematicsEasy
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QJEE MAIN 2024
A simple pendulum doing small oscillations at a place R height above earth surface has time period of T_1=4" " s.T_2 would be it's time...
JEE MainPhysicsMedium
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QJEE MAIN
If the solution curve y=y(x) of the differential equation $\left(1+y^2\right)\left(1+\log _e x\right) d x+x d y=0, x>0$ passes through the point (1,1) and $...
JEE MainMathematicsMedium
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QJEE MAIN 2024
In an ac circuit, the instantaneous current is zero, when the instantaneous voltage is maximum. In this case, the source may be connected to :...
JEE MainPhysicsMedium
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QJEE MAIN 2024
For $\alpha, \beta, \gamma \neq 0$. If $\sin ^{-1} \alpha+\sin ^{-1} \beta+\sin ^{-1} \gamma=\pi$ and $(\alpha+\beta+\gamma)(\alpha-\gamma+\beta)=3 \alpha \beta$, then $\gamma$ equal to
JEE MainMathematicsEasy
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QJEE MAIN 2024
A wooden block of mass 5 kg rests on soft horizontal floor. When an iron cylinder of mass 25 kg is placed on the top...
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