7 boys and 5 girls are to be seated around a circular table such that no two girls sit together is?
Let $y=f(x)$ represent a parabola with focus $\left(-\frac{1}{2}, 0\right)$ and directrix $y=-\frac{1}{2}$ Then $S=\left\{x \in R : \tan ^{-1}(\sqrt{f(x)})+\sin ^{-1}(\sqrt{f(x)+1})=\frac{\pi}{2}\right\}$ :
Which of the following will not give test for Cl- with AgNO3(aq) at 250C?
गलती करना मनुष्य का स्वभाव है।
जो वह कहता है, सही है।
रोज अखबार पढ़ो।