Binomial Theorem And Its Simple Applications Question 39
Question: Find the 7th term from the end in the expansion of $ {{( x-\frac{2}{x^{2}} )}^{10}} $ .
Options:
A) $ ^{10}C_4 $
B) $ ^{10}C_4{{.2}^{4}}x $
C) $ 2^{4}.x^{2} $
D) $ ^{10}C_4{{.2}^{4}}( \frac{1}{x^{2}} ) $
Show Answer
Answer:
Correct Answer: D
Solution:
- [d] The 7th term from the end = 5th term from beginning $ T_5{{=}^{10}}C_4x^{6}{{( -\frac{2}{x^{2}} )}^{4}}={{,}^{10}}C_4{{.2}^{4}}( \frac{1}{x^{2}} ) $