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Recent questions tagged 219

If $\alpha$ is a root of $25 \cos^2 \theta + 5 \cos \theta - 12 =0$ $\frac{\pi}{2} < \alpha < \pi$, then $\sin 2 \alpha$ is equal to :

asked Dec 11, 2018 by pady_1

0 answers

The mean and variance of a random variable $X$ having a binomial distribution are 4 and 2 respectively, then $P(X=1)$ is :

asked Dec 11, 2018 by pady_1

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The binding energy per nucleon of deuteron $(_1^2H)$ and helium nucleus $(_2^4 He)$ is $1.1\; MeV$ and $7\; MeV$ respectively. If two deuteron nuclei react to form a single helium nucleus, then the energy released is

asked Nov 5, 2018 by pady_1

0 answers

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