Let us see how to determine the constant term in a binomial theorem with the help of an example. Example: Find the constant term in the binomial expansion of $(\frac{a^2 - 4}{a})^6$. Solution: First, we will expand the given binomial according to binomial expansion theorem as follows: $(\frac{a^2 - 4}{a})^6$ = $(-1)^{r 6}C_r$ $(\frac{4}{a})^r$ $(a^2)^{6 - r}$ = $(-1)^{r 6}C_r 4^r (a)^{12 - 3r}$
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A new ransomware was found today by Malwarebytes' malware researcher S!Ri called Jaff Ransomware. In general, there is nothing special about this ransomware other than it is being heavily distributed and that they stole the payment site html from Locky. Otherwise, Jaff is your garden variety ransomware that encrypts files using AES encryption and appends the .jaff extension to encrypted files.