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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Robert Graham, CEO of U.S.-based security research firm Errata Security, said Superfish was malicious software that hijacks and throws open encrypted connections, paving the way for hackers to also commandeer these connections and eavesdrop, in what is known as a man-in-the-middle attack.