Six coins tossed simultaneously then find the probability of getting at least 4 heads.
Find the products formed if chlorine reacts with the cold and dilute sodium hydroxide solution.
A permutation is an arrangement of multiple objects in a particular order taken a few or all at a time. The formula for permutation is as follows:
\(^nP_r = \frac{n!}{(n-r)!}\)
nPr = permutation
n = total number of objects
r = number of objects selected