logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
0 votes

If the coefficients of $x^3$ and $x^5$ in the expansion of $(1+ax+bx^2)(1-2x)^{18}$ in powers of $x$ are both zero, then $(a,b)$ is equal to:

$\begin{array}{1 1} (A) (16, \large\frac{251}{3}) \\ (B) (14, \large\frac{251}{3}) \\ (C) (14, \large\frac{272}{3}) \\ (D) (16, \large\frac{272}{3}) \end{array} $

Can you answer this question?
 
 

Please log in or register to answer this question.

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...