BitsatSequences And SeriesBITSAT 2024MCQ+3 / -12024The coefficient of $ x^{n} $ in the expansion of $ \frac{e^{7 x}+e^{x}}{e^{3 x}} $ isA$ \frac{4^{n-1}+(-2)^{n}}{n!} $B$ \frac{4^{n-1}+2^{n}}{n!} $C$ \frac{4^{n}+(-2)^{n}}{n!} $D$ \frac{4^{n-1}+(-2)^{n-1}}{n!} $Check AnswerClear SelectionReveal AnswerShow Explanation
