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
CBSE XII Board Exam Series
BES Math
BES Physics
BES Chemistry
BES Biology
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
CBSE XII Board Exam Series
BES Math
BES Physics
BES Chemistry
BES Biology
mobile
exams
ask
sample papers
tutors
pricing
login
X
ASK
Home
>>
EAMCET
>>
Mathematics
If $b+c=3a,$ then $cot \large\frac{B}{2}$$ \cot \large\frac{C}{2}$ is equal to :
\[\begin {array} {1 1} (a)\;3 & \quad (b)\;1 \\ (c)\;4 & \quad (d)\;2 \end {array}\]
jeemain
eamcet
math
2006
q32
Share
asked
Nov 6, 2013
by
meena.p
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1 Answer
(d) 2
answered
Nov 7, 2013
by
pady_1
Please
log in
or
register
to add a comment.
Related questions
Twelve cells, each having emf E volts are connected in series and are kept in a closed box. Some of these cells are wrongly connected with positive and negative terminals reversed. This 12 cell battery is connected in series with an ammeter , an external resistance R ohms and a two- cell battery (two cells of the same type used earlier , connected perfectly in series). The current in the circuit when the 12 - cell battery and 2-cell battery aid each other is 3A and is 2A when they oppose each other . Then, the number of cells in 12 -cell battery that are connected wrongly is :
jeemain
eamcet
physics
2006
q32
asked
Oct 29, 2013
by
meena.p
1
answer
Observe the following statements :(I) In $\Delta ABC, b \; \cos ^2 \large\frac{C}{2}+c \cos ^2 \large\frac{B}{2} =s$ (II) In $\Delta ABC, \cot \large\frac{A}{2}=\frac{b+c}{2}$$ => B =90^{\circ}$ Which of the following is correct?
jeemain
eamcet
math
2008
q32
asked
Oct 17, 2013
by
meena.p
1
answer
In $\Delta ABC, \sum (b+c) \tan \large\frac{A}{2}$$ \tan \bigg(\large\frac{B-C}{2}\bigg)$ is equal to :
jeemain
eamcet
math
2005
q32
asked
Nov 12, 2013
by
meena.p
1
answer
In $\Delta ABC, (a+b+c) \bigg(\tan \large\frac{A}{2}$$+\tan \large\frac{B}{2}\bigg)$ is equal to
jeemain
eamcet
math
2007
q32
asked
Oct 25, 2013
by
meena.p
1
answer
If $\int \large\frac{dx}{x^2+2x+2}$$=f(x) +c,$ then f(x) is equal
jeemain
eamcet
math
2006
q73
asked
Nov 7, 2013
by
meena.p
1
answer
If A and B are two independent events such that $P(B)=\large\frac{2}{7}$$,P(A \cup B)=0.8,$ then $P(A)$ is equal to :
jeemain
eamcet
math
2006
q39
asked
Nov 6, 2013
by
meena.p
1
answer
If $u= \sin ^{-1} \bigg( \large\frac{x^2+y^2}{x+y}\bigg)$ then $x \large\frac{\partial u}{\partial x}$$+ y \large\frac{\partial u}{\partial y}$ is equal to :
jeemain
eamcet
math
2006
q70
asked
Nov 6, 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
...
close