Help
Contact
For teachers and institutes
Search courses, problems, tests…
A
A
>_
StemPy Lab
Courses ▾
Problems ▾
Practice ▾
Mock Tests
Classes
Community ▾
A
A
In the expansion of (1 + x)ⁿ, three consecutive… | StemPy Lab
Quizzes
/
In the expansion of (1 + x)ⁿ, three consecutive coefficients are in the ratio 1 : 2 : 3. Then n is
Mathematics
Medium
High School (11–12)
Algebra › Binomial Theorem
Algebra › Polynomials
A-Level
IB
Created by
StemPy Lab
In the expansion of
(
1
+
x
)
n
(1 + x)^{n}
(
1
+
x
)
n
, three consecutive coefficients are in the ratio
1
:
2
:
3
1 : 2 : 3
1
:
2
:
3
. Then
n
n
n
is
13
13
13
14
14
14
15
15
15
17
17
17
Check Answer
Log in to save
Tag someone
⚑ Report
← All Quizzes
← Expanding (3x² - 1/x)⁸, a student looks for the term that carries x⁷. What number is its coefficient?
Multiply out (1 + x + x²)³. Adding only the coefficients of x⁰, x², x⁴, x⁶ gives →
More on
Algebra › Binomial Theorem
Algebra › Polynomials
Discussion (0)
Log in
to join the discussion.
Loading…
Problems on this topic
Use the first three terms of the expansion to estimate 1.05⁸…
Medium
Show that 11^(n + 2) + 12^(2n + 1) is divisible by 133 for every positive integer n, and find the…
Hard
Find the last two digits of 51³⁷.
Medium
Find the remainder when 13⁴⁰ is divided by 14, and the remainder when 13⁴¹ is divided by 14.
Easy
All problems on this topic →
Created by StemPy LabCreated by StemPy Lab