The main difference between nC2 and nC4 is the number of elements being chosen. nC2 represents the number of ways to choose 2 elements from a set of n elements, while nC4 represents the number of ways to choose 4 elements from a set of n elements. In general, nC4 will be a larger number compared to nC2 for the same value of n.
Rousseau NC4, with a Vandoren size 4 reed and a Rovner dark ligature.
If the question is about 4 things out of 4, the answer is, obviously, 1. If the question is about 4 things out of n, then the answer is nC4 = n!/[(n-4)!*4!], whose value will obviously depend on n.
I think it is a gas and gas
It is a gas.
it gas change is were a gas changes
Gas can start your lawn mower, gas can start your fireplace (if it is a gas fireplace), gas can cook your food on the stove (if it is a gas stove), and gas can cook your food on the grill (if it is a gas grill).
A gas can not be strong or weak.It is a gas or it is not a gas.(Gas is one of the four 'States of Matter': plasma, gas, liquid, solid)
The gas is Methane.
Air is an example of a gas-gas solution.
You use Natural gas for gas cookers
In a gas bottle, in a gas field or in a gasometer.