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Recent questions tagged q1-8
Questions
'The sum of all interior angles of a triangle is $180^\circ$.' Is this sentence a statement? Give reason.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-1
sec-a
easy
q1-8
asked
Jul 4, 2014
by
rvidyagovindarajan_1
1
answer
Using differentials, find the approximate value of each of the following up to $3$ places of decimal. $(255)^{\Large\frac{1}{4}}$
cbse
class12
bookproblem
ch6
sec4
q1
q1-8
p216
sec-b
medium
math
asked
Aug 5, 2013
by
sreemathi.v
1
answer
Evaluate the limit for the following if exists. $\;\lim\limits_{x \to 0} \large\frac{\cot x}{\cot 2x}$
tnstate
class12
bookproblem
ch5
sec-1
exercise5-6
p34
q1
q1-8
asked
May 6, 2013
by
poojasapani_1
1
answer
Integrate : $\int\large\frac{1+\tan^2x}{\sqrt{1+\tan^2x}}\normalsize dx$.
isc
class12
modelpaper
2004
part-1
sec-a
q1
q1-8
asked
Apr 18, 2013
by
sreemathi.v
0
answers
A performance test was conducted among seven candidates.They scored the following marks : 7,10,12,15,17,19,25.Calculate the interquartile range and the standard deviation.
isc
class12
modelpaper
2005
sec-a
q1
q1-8
asked
Apr 17, 2013
by
sreemathi.v
0
answers
One set of 100 observations has the mean as 15 and another set of 150 observations has the mean as 16.Find the mean of 250 observations by combining the two sets of given observations.
isc
class12
modelpaper
2006
sec-a
q1
q1-8
asked
Apr 16, 2013
by
sreemathi.v
0
answers
Five students scored marks as follows : 8,10,15,20,22.
isc
class12
modelpaper
2007
sec-a
q1
q1-8
asked
Apr 16, 2013
by
sreemathi.v
0
answers
In a standard deviation of the numbers,2,3,11 and x is $3\large\frac{1}{2}$,find the value of $x$.
isc
class12
modelpaper
2008
sec-a
q1
q1-8
asked
Apr 15, 2013
by
sreemathi.v
0
answers
Find the order and degree of the following differential equation: $y'+ (y'')^{2}$=$ x( x+y'' )^{2}$
tnstate
class12
bookproblem
ch8
sec-1
exercise8-1
p128
q1
q1-8
asked
Apr 14, 2013
by
poojasapani_1
1
answer
The mean weight of 70 students in a class is 60 kg.The mean weight of the girls in the class is 53 kg and that of the boys is 70.5 kg.Find the number of girls in the class.
isc
class12
modelpaper
2009
sec-a
q1
q1-8
asked
Apr 12, 2013
by
sreemathi.v
0
answers
If the regression equation of $x$ on $y$ is given by $mx-y+10=0$ and the equation of $y$ on $x$ is given by $-2x+5y=14$,determine the value of 'm' if the coefficient of correlation between $x$ and $y$ is $\large\frac{1}{\sqrt {10}}$.
isc
class12
modelpaper
2010
sec-a
q1
q1-8
asked
Apr 11, 2013
by
sreemathi.v
1
answer
Find the equation of the hyperbola if centre : $(1 , 4 );$one of the foci $(6 , 4 )$ and the corresponding directrix is $x=\large\frac{9}{4}$
tnstate
class12
bookproblem
ch4
sec-1
exercise4-3
p238
q1
q1-8
asked
Apr 11, 2013
by
poojasapani_1
1
answer
Find the modulus and argument of the complex number $\large \frac{2+i}{4i+(1+i)^2}$
isc
class12
modelpaper
2011
sec-a
q1
q1-8
asked
Apr 11, 2013
by
sreemathi.v
0
answers
Find the equation of the ellipse if the foci are $(\pm 3 , 0 ),$ and the length of the latus rectum is $\large\frac{32}{5}$
tnstate
class12
bookproblem
ch4
sec-1
exercise4-2
p217
q1
q1-8
asked
Apr 10, 2013
by
poojasapani_1
1
answer
Evaluate : $\Large \int_1^2 \frac{\sqrt x}{\sqrt{3-x}+\sqrt x}\normalsize dx.$
isc
class12
modelpaper
2012
sec-a
q1
q1-8
asked
Apr 10, 2013
by
sreemathi.v
0
answers
Find the equation of parabola if :Vertex $(3 , -1 );$ open rightward ; the distance between the latus recturm and directrix is $4$.
tnstate
class12
bookproblem
ch4
sec-1
exercise4-1
p192
q1
q1-8
asked
Apr 9, 2013
by
poojasapani_1
1
answer
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