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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CryptoWall is a new variant of the ransomware CryptoLocker virus. Crypto Wall is for the most part the same as CryptoDefense, CryptorBit and Cryptolocker other than the name change and different filenames for the ransom instructions.hen Crypto Wall is installed it will scan your computer for data files and encrypt them. When CryptoWall is installed it will scan your computer for data files and encrypt them. It will then create files containing ransom instructions in every folder that it had encrypted a file.