Ask Questions, Get Answers
Menu
X
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
studyplans
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
mobile
exams
ask
sample papers
tutors
pricing
login
X
ASK
Home
>>
EAMCET
>>
Mathematics
If $a,b$ and $n$ are natural numbers then $a^{n-1}+b^{n-1}$ is divisible by:
\[\begin {array} {1 1} (a)\;a+b & \quad (b)\;a-b \\ (c)\;a^3+b^3 & \quad (d)\;a^2+b^2\end {array}\]
jeemain
eamcet
math
2011
q21
Share
asked
Sep 20, 2013
by
meena.p
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1 Answer
$(a)\;a+b$
answered
Nov 7, 2013
by
pady_1
Please
log in
or
register
to add a comment.
Related questions
If $n$ is an integer which leaves remainder one when divided by three, then $(1+\sqrt {3}i)^n+(1-\sqrt {3}i)^n=$
jeemain
eamcet
math
2009
q21
asked
Oct 9, 2013
by
meena.p
1
answer
The number of five digit numbers divisible by 5 that can be formed using the numbers $0,1,2,3,4,5$ without repetition is
jeemain
eamcet
math
2011
q23
asked
Sep 20, 2013
by
meena.p
1
answer
If $^{(n-1)} C_3+^{n-1} C_4 \;>\;^n C_3$, then the minimum value of $n$ is
jeemain
eamcet
math
2011
q25
asked
Sep 20, 2013
by
meena.p
1
answer
The number of points $P(x,y)$ with natural numbers as coordinates that the inside the quadrilateral formed by the lines $2x+y=2,y=0$ and $x+y=5 $ is
jeemain
eamcet
math
2011
q61
asked
Sep 23, 2013
by
meena.p
1
answer
If $f:[2, \infty) \to B$ defined by $f(x)=x^2-4x+5$ is a bijection, then B=
jeemain
eamcet
math
2011
q19
asked
Sep 20, 2013
by
meena.p
1
answer
If $\tan A $ and $\tan B$ are the roots of the quadratic equation $x^2-px+q=0,$ then $\sin^2 (A+B)$=
jeemain
eamcet
math
2011
q30
asked
Sep 20, 2013
by
meena.p
1
answer
A bag contains $n$ white and $n$ black balls. Pairs of balls are drawn at random without replacement successively, until the bag is empty. If the number of ways in which each pair consists of one white and one black balls is $14,400.$ then $n=$
jeemain
eamcet
math
2011
q22
asked
Sep 20, 2013
by
meena.p
1
answer
Ask Question
Tag:
Math
Phy
Chem
Bio
Other
SUBMIT QUESTION
►
Please Wait
Take Test
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
JEEMAIN
350+ TESTS
NEET
320+ TESTS
CBSE XI MATH
50+ TESTS
CBSE XII MATH
80+ TESTS
...
X