Questions without a selected answer in Others

​​​​​The sum of the following infinite series is:$$ \frac{1}{1!}+\frac{1}{2!}+\frac{1}{3!}+\frac{1}{4!}+\frac{1}{5!}+\cdots $$$\pi$$1+e$$e-1$$e$

​​​​​A color model is shown in the figure with color codes: Yellow (Y), Magenta (M), Cyan (Cy), Red (R), Blue (Bl), Green (G), and Black (K).Which one of the following op...

If $7^{3 x}=216$, the value of $7^{-x}$ (rounded off to three decimal places) is _____________.

If there are three unrooted trees for four protein sequences, the number of rooted trees for the same number of sequences is _______________.

The mass of $1$ $kmol$ of oxygen molecules is ___________$g$ (rounded off to the nearest integer).