Problem regarding three/four Consecutive terms or Coefficients - Basic

Compared to other sections, Mathematics is considered to be the most scoring section. If prepared thoroughly, Mathematics can help students to secure a meritorious position in the exam. These questions are very important in achieving your success in Exams after 12th.

Q1. If in the expansion of (1 + x)2, a, b, c are three consecutive coefficients, then n =

•  (ac+ab+bc)/(b2+ac)
•  (2ac+ab+bc)/(b2-ac)
•  (ac+ac)/(b2+ac)
•  None of these

(2ac+ab+bc)/(b2-ac)

Q2. 252.If n is a positive integer and three consecutive coefficients in the expansion of (1+x)2 are in the ratio 6 : 33 : 110, then n =

•  4
•  6
•  12
•  16

12

Q3. If the three consecutive coefficients in the expansion of (1+x)2 are 28, 56 and 70, then the value of n is

•  6
•  4
•  8
•  10

8

Q4. The coefficients of three successive terms in the expansion of (1+x)2 are 165, 330 and 462 respectively, then the value of n will be

•  11
•  10
•  12
•  8

11

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Problem regarding three/four Consecutive terms or Coefficients - Basic