Email
Chat with tutors
Login
Ask Questions, Get Answers
Menu
X
home
ask
tuition
questions
practice
papers
mobile
tutors
pricing
X
Recent questions tagged q12
Questions
A die is tossed thrice. Find the probability of getting an odd number at least once.
cbse
class12
bookproblem
ch13
sec2
p546
q12
sec-a
easy
math
asked
Nov 27, 2012
by
balaji.thirumalai
1
answer
Find the maximum and minimum values of \( x + \sin\: 2x\) on \([0, 2\pi].\)
cbse
class12
bookproblem
ch6
sec5
q12
p233
sec-b
easy
math
asked
Nov 27, 2012
by
thanvigandhi_1
1
answer
Assume that each born child is equally likely to be a boy or a girl. If a family has two children, what is the conditional probability that both are girls given that (i) the youngest is a girl, (ii) at least one is a girl?
cbse
class12
bookproblem
ch13
sec1
q12
p539
sec-a
easy
math
asked
Nov 27, 2012
by
balaji.thirumalai
1
answer
Given $3\begin{bmatrix} x & y \\ z & w \end{bmatrix}$ = $\begin{bmatrix} x & 6 \\ -1 & 2w \end{bmatrix}$ + $\begin{bmatrix} 4 & x + y \\ z + w & 3 \end{bmatrix}$, find the values of $x, y, z$ and $w$.
cbse
class12
bookproblem
ch3
sec2
q12
p81
easy
shortanswer
sec-a
math
asked
Nov 25, 2012
by
pady_1
1
answer
if $A = \begin{bmatrix} cos\alpha & -sin\alpha \\ sin\alpha & cos\alpha \end{bmatrix} $ then $ A + A' = I, $ if the value of $\alpha$ is
cbse
class12
bookproblem
ch3
sec3
q12
p90
easy
shortanswer
objective
sec-a
math
asked
Nov 23, 2012
by
pady_1
1
answer
Using elementary transformations, find the inverse of the matrix if it exists - $ \begin{bmatrix} 6 & -3 \\ -2 & 1 \end{bmatrix} $
cbse
class12
bookproblem
ch3
sec4
q12
p97
easy
shortanswer
sec-b
math
asked
Nov 23, 2012
by
pady_1
1
answer
Find the equation of all lines having slope $0$ that are tangents to the curve $ y=\large \frac{1}{x^2-2x+3}$
cbse
class12
bookproblem
ch6
sec3
q12
p212
sec-b
easy
math
asked
Nov 23, 2012
by
thanvigandhi_1
1
answer
Which of the following functions are strictly decreasing on $\left(0, \: \large {\frac{\pi}{2}}\right)$
cbse
class12
bookproblem
ch6
sec2
q12
p206
sec-b
medium
math
asked
Nov 23, 2012
by
thanvigandhi_1
1
answer
The radius of an air bubble is increasing at the rate of $ \large\frac{1}{2}$ cm/s. At what rate is the volume of the bubble increasing when the radius is $1\; cm$?
cbse
class12
bookproblem
ch6
sec1
q12
p198
sec-a
easy
math
asked
Nov 23, 2012
by
thanvigandhi_1
1
answer
Consider the binary operation $\ast :\; R \times R \rightarrow R$ and $o :\; R \times R \rightarrow R$ defined as $a \ast b = | a \text{-b}|$ and \(\;a\;o\;b=a, \forall a,\;b \in R.\) Show that \(\ast\) is commutative but not associative, \(o\) is associative but not commutative. Further, show that \(\forall\; a,\; b,\; c \in R,\; a\; \ast\; (b\; o\; c) = (a \ast b) \;o\; (a \ast c)\). [If it is so, we say that the operation $\ast$ distributes over $o$]. Does $o$ distribute over? Justify your answer.
cbse
class12
bookproblem
ch1
misc
q12
p30
sec-b
medium
math
asked
Nov 22, 2012
by
vaishali.a
1
answer
If \(A\) and \(B\) are square matrices of the same order such that \(AB = BA \), then prove by induction that \(AB^n = B^nA \). Further, prove that \( (AB)^n = A^nB^n \: \) for all \( n ∈ N. \)
cbse
class12
bookproblem
ch3
misc
q12
p101
long-answer
difficult
sec-c
math
asked
Nov 22, 2012
by
pady_1
1
answer
Find \( \large\frac{dy}{dx} \), if \( y = 12 ( 1 - \cos t ) , x = 10 ( t - \sin t ) , -\large\frac{\pi}{2}\normalsize < t <\large \frac{\pi}{2} \)
cbse
class12
bookproblem
ch5
misc
q12
p191
easy
sec-b
math
asked
Nov 21, 2012
by
thanvigandhi_1
1
answer
If \( y =\cos^{-1}x \) , find \( \large\frac{d^2y}{dx^2}\) in terms of \( y \) alone.
cbse
class12
bookproblem
ch5
sec7
q12
p184
sec-b
medium
math
asked
Nov 20, 2012
by
thanvigandhi_1
1
answer
Find $\large\frac{dy}{dx}$ of the functions given in $ x^{\large y }+ y^{\large x }= 1 $
cbse
class12
bookproblem
ch5
sec5
q12
p178
sec-c
difficult
math
asked
Nov 17, 2012
by
thanvigandhi_1
1
answer
Differentiate the functions given in w.r.t. $x : $ $y=(\log x)^{\large x}+x^{\large\log x}$
cbse
class12
bookproblem
ch5
sec5
q7
p178
sec-b
medium
modelpaper
2012
q12
math
asked
Nov 17, 2012
by
thanvigandhi_1
1
answer
Let \(f : X \to Y\) be an invertible function. Show that the inverse of $f^{-1}$ is $f$, i.e., $(f^{-1})^{-1} = f$.
cbse
class12
bookproblem
ch1
sec3
q12
p19
easy
sec-a
math
asked
Nov 16, 2012
by
vaishali.a
1
answer
Find $ \frac {dy}{dx} $ in the following:$ y = sin^{-1} \left(\frac{1 - x^2}{1 + x^2}\right), 0 < x < 1 $
cbse
class12
bookproblem
ch5
sec3
q12
p169
exercise5-3
sec-a
easy
math
asked
Nov 15, 2012
by
thanvigandhi_1
1
answer
Let $f : R \to R$ be defined as $f (x) = 3x$. Choose the correct answer:
cbse
class12
bookproblem
ch1
sec2
q12
p11
easy
sec-a
math
asked
Nov 9, 2012
by
vaishali.a
1
answer
Find all points of discontinuity of $f$, where $f$fined by $ f(x) = \left\{ \begin{array} {1 1} x^{10} -1 ,& \quad\text{ if $ x $ \(\leq 1\)}\\ x^2,& \quad \text{if $x$ > 1}\\ \end{array} \right. $
cbse
class12
bookproblem
ch5
sec1
q12
p159
sec-b
medium
math
asked
Nov 9, 2012
by
thanvigandhi_1
1
answer
Show that the relation \(R\) defined in the set \(A\) of all triangles as \(R = \{(T_1, T_2) : T_1\,is\, similar\, to\, T_2\}\), is equivalence relation. Consider three right angle triangles $(T_1 \;$ with sides $3, 4, 5, \; T_2$ with sides $5, 12, 13$, and $T_3$, with sides $6, 8, 10$) Which triangles among \(T_1\, T_2\, and\, T_3\) are related?
cbse
class12
bookproblem
ch1
sec1
q12
p6
medium
sec-b
math
asked
Nov 8, 2012
by
vaishali.a
1
answer
Find the coordinates of the point where the line through $(3, – 4, – 5)$ and $(2, – 3, 1)$ crosses the plane $2x + y + z = 7.$
cbse
class12
bookproblem
ch11
misc
p498
q12
sec-b
medium
math
asked
Nov 2, 2012
by
balaji.thirumalai
1
answer
Page:
« prev
1
...
6
7
8
9
Home
Ask
Tuition
Questions
Practice
Your payment for
is successful.
Continue
...