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Recent questions tagged q47
Questions
Evaluate the following:$\int\limits_ {\Large\frac{-\pi}{4}}^{\Large\frac{\pi}{4}} \log(\sin x+\cos x)dx$
cbse
class12
ch7
q47
p166
exemplar
sec-c
difficult
math
asked
Jan 15, 2013
by
sreemathi.v
1
answer
Let the $f:R\rightarrow R$ be defined by $f(x)=2x+\cos x,$then
cbse
class12
ch6
q47
p140
objective
exemplar
sec-a
easy
math
asked
Jan 11, 2013
by
sreemathi.v
1
answer
By examining the chest X ray,the probability that TB is detected when a person is actually suffering is 0.99.The probability of an healthy person diagnosed to have TB Is 0.001.In a certain city,1 in 1000 people suffers from TB.A person is selected at random and is diagnosed to have TB.What is the probability that he actually has TB?
cbse
class12
ch13
q47
p277
exemplar
sec-b
medium
math
asked
Jan 9, 2013
by
sreemathi.v
1
answer
True or False: The vector equation of the line $\Large \frac{x-5}{3}\;=\frac{y+4}{7}\;=\frac{z-6}{2}$ is\[\overrightarrow{r}=(5\hat i-4\hat j+6\hat k)+\lambda(3i\;+7j\;+2k).\]
cbse
class12
ch11
q47
p239
true-or-false
exemplar
difficult
sec-a
math
asked
Jan 7, 2013
by
sreemathi.v
1
answer
Find $\large \frac{dy}{dx}$ of the function expressed in parametric form $\sin x=\large\frac{2t}{1+t^2},$$\tan y=\large\frac{2t}{1-t^2}$
cbse
class12
ch5
q47
p110
short-answer
exemplar
sec-b
difficult
math
asked
Dec 31, 2012
by
sreemathi.v
1
answer
If $f(x)$ = $\small\begin{vmatrix}(1+x)^{17} & (1+x)^{19} & (1+x)^{23}\\(1+x)^{23} & (1+x)^{29} & (1+x)^{34}\\(1+x)^{41} & (1+x)^{43} & (1+x)^{47}\end{vmatrix}$ = $A+Bx+Cx^2+.....$, then $A$ =
cbse
class12
ch4
sec-a
q47
p84
fitb
exemplar
medium
math
asked
Dec 28, 2012
by
sreemathi.v
1
answer
If A is square matrix such that $A^2=A,$show that $(I+A)^3=7A+I.$
cbse
class12
ch3
q47
p58
short-answer
sec-b
easy
exemplar
math
asked
Dec 23, 2012
by
sreemathi.v
1
answer
The result $\tan^{-1}x-\tan^{-1}y=\tan^{-1}\bigg(\Large {\frac{x-y}{1+xy}}\normalsize \bigg)$ is true when value of xy is _____________.
cbse
class12
ch2
q47
p40
fitb
exemplar
easy
sec-a
math
asked
Dec 21, 2012
by
sreemathi.v
1
answer
Let $\; f:R \rightarrow R$ be given as $\;f(x)=\tan x $. Then $\;f^{-1}(1)$ is
cbse
class12
ch1
q47
p16
objective
exemplar
math
sec-a
asked
Dec 19, 2012
by
sreemathi.v
1
answer
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