Recent questions tagged class11

State whether 'or' used in the statement " All integers are positive or negative" is inclusive or or exclusive or. Give reason.

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

State whether the 'or' in the statement "To apply for a driving licence, you should have a ration card or a passport." is inclusive or or exclusive or. Give reason.

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

If the magnitudes of vectors $\overrightarrow{A},\overrightarrow{B},\overrightarrow{C}$ are 3,4 and $\theta$ units respectively and if $\overrightarrow{A}+\overrightarrow{B}=\overrightarrow{C},$ then the angle between $\overrightarrow{A}$ and $\overrightarrow{B}$ is

asked Jul 16, 2014 by meena.p

1 answer

State whether 'or' used in the statement given "Sun rises or Moon sets" is exclusive or inclusive.

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

Check whether the two statements given are negation of each other or not. Give reason " $p: x+y=y+x$ is true for every real number $x\:\:and\:\:y$. $q:$ There exists real numbers $x\:\:and\:\:y$ for which $x+y=y+x$.

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

Identify the quantifier and and write the negation of the statement "There exists a capital for every state in India."

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

Identify the quantifier and and write the negation of the statement "For every real number $x, \:\:x$ is less that $x+1$."

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

Identify the quantifier and write the negation of the statement "There exists a number which is equal to its square."

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

Identify the connecting word and and write the components of the statement "$x=2\:\:and\:\:x=3$ are the roots of the equation $3x^2-x-10=0$."

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

Identify the connecting word and and write the components of the statement "The sand heats up quickly in the Sun and does not cool down fast at night"

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

Identify the connecting word and and write the components of the statement "Square of an integer is positive or negative."

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

Identify the connecting word and and write the components of the statement "All rational numbers are real and all real numbers are not complex."

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

An aeroplane is moving on a circular path with a speed of $250 \;kmhr^{-1}$ The change in its velocity in half revolution is

asked Jul 16, 2014 by meena.p

1 answer

The angle between two vectors $\overrightarrow{A}$ and $\overrightarrow{B}$ is $\theta$ . Resultant of these two vectors is $ \overrightarrow{R}$ Which makes an angle of $\large\frac{\theta}{2}$ with $\overrightarrow{A}$. Which of the following is true?

asked Jul 16, 2014 by meena.p

1 answer

Following sets of forces act on a body. In which case the resultant cannot be zero.

asked Jul 16, 2014 by meena.p

1 answer

Two forces have magnitudes in the ratio of $3:5$ and the angle between their direction is $60^{\circ}$ . If their resultant is $35 N$ their magnitude are

asked Jul 16, 2014 by meena.p

1 answer

A man travels 1 km east , then 5 km due south , then 2 km due east and finally 9 km due north. How far is he from the starting point ?

asked Jul 16, 2014 by meena.p

1 answer

A ball slides off a horizontal table top $1.25 \;m$ hight, with a velocity of $4ms^{-1}$ Find the horizontal distance from the edge of the table at which the ball strikes the ground. $(g= 10 ms^{-2})$

asked Jul 16, 2014 by meena.p

1 answer

A ball is thrown with an initial velocity of 30 m/s at an angle of 60$^{\circ}$ above the horizontal. Find the maximum height the ball can travel to?

asked Jul 16, 2014 by meena.p

1 answer

Find the coordinates of the foci, the vertices, the length of major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse : $ \large\frac{x^2}{49}$$+\large\frac{y^2}{36}$$=1$

asked Jul 15, 2014 by thanvigandhi_1

1 answer

The equation of trajectory of a projectile is given by $y=x -\large\frac{x^2}{100}$ Find the range .

asked Jul 15, 2014 by meena.p

1 answer

The equation of trajectory of a projectile is given by $y=x -\large\frac{x^2}{100}$ Find the maximum height.

asked Jul 15, 2014 by meena.p

1 answer

Find the coordinates of the foci, the vertices, the length of major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse : $ \large\frac{x^2}{25}$$+\large\frac{y^2}{100}$$=1$

asked Jul 15, 2014 by thanvigandhi_1

1 answer

The equation of trajectory of a projectile is given by $y=x -\large\frac{x^2}{100}$ Find velocity of projection .

asked Jul 15, 2014 by meena.p

1 answer

Find the coordinates of the foci, the vertices, the length of major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse : $ \large\frac{x^2}{16}$$ +\large\frac{y^2}{9}$$=1$

asked Jul 15, 2014 by thanvigandhi_1

1 answer

Find the coordinates of the foci, the vertices, the length of major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse : $\large\frac{x^2}{4}$$+\large\frac{y^2}{25}$$=1$

asked Jul 15, 2014 by thanvigandhi_1

1 answer

Find the coordinates of the foci, the vertices, the length of major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse : $ \large\frac{x^2}{36}$$+\large\frac{y^2}{16}$$=1$

asked Jul 15, 2014 by thanvigandhi_1

1 answer

Find the equation of the parabola that satisfies the given conditions : Vertex (0,0), passing through (5,2) and symmetric with respect to y-axis

asked Jul 15, 2014 by thanvigandhi_1

1 answer

The equation of trajectory of a projectile is given by $y=x -\large\frac{x^2}{100}$ Find velocity of projection .

asked Jul 15, 2014 by meena.p

1 answer

Find the equation of the parabola that satisfies the given conditions : Vertex (0,0) passing through (2,3) and axis is along x-axis

asked Jul 15, 2014 by thanvigandhi_1

1 answer

It is possible to project a particle with a given velocity in two possible ways so as to make it pass through a point at a horizontal distance R from the point of projection .If $H_1$ and $H_2$ are the corresponding maximum height and $H$ is maximum height when the particle is projected at $45^{\circ}$ with the same speed, then what is $H_1+H_2$

asked Jul 15, 2014 by meena.p

1 answer

It is possible to project a particle with a given velocity in two possible ways so as to make it pass through a point at a horizontal distance R from the point of projection . If $t_1$ and $t_2$ are the time taken to reach this point in two possible ways then what is $t_1t_2$?

asked Jul 15, 2014 by meena.p

1 answer

A ball rolls off the top of a stairway with a velocity u. If the height of each step is h, the breadth is b and the ball hits the edge of nth steps, the find the value of n.

asked Jul 15, 2014 by meena.p

1 answer

A man can throw a stone 60 m away . How high can he throw the stone vertically upward?

asked Jul 15, 2014 by meena.p

1 answer

A car travels east at a speed of $30m/s^{-1}$ . It turns left through an angle of $90^{\circ}$ and continues to travel with the same speed. What is the change in its velocity ?

asked Jul 15, 2014 by meena.p

1 answer

Find the equation of the parabola that satisfies the given conditions : Vertex (0,0); focus (–2,0)

asked Jul 14, 2014 by thanvigandhi_1

1 answer

Find the equation of the parabola that satisfies the given conditions : Vertex (0,0); focus (3,0)

asked Jul 14, 2014 by thanvigandhi_1

1 answer

Find the equation of the parabola that satisfies the given conditions : Focus (0,–3); directrix y = 3

asked Jul 14, 2014 by thanvigandhi_1

1 answer

Write the components of the statement "$100$ is divisible by $3,\:11$ and $5$ Also check whether it is true or false.

asked Jul 14, 2014 by rvidyagovindarajan_1

1 answer

Write the component of the compound statement "All integers are positive or negative." Also check whether it is true of false.

asked Jul 14, 2014 by rvidyagovindarajan_1

1 answer

Write the components of the compound statement "Number $3$ is prime or it is odd" and also find whether it is true or false.

asked Jul 14, 2014 by rvidyagovindarajan_1

1 answer

Are the pair of statements "The number $x$ is a rational number." and "The number $x$ is an irrational number." negation of each other?

asked Jul 14, 2014 by rvidyagovindarajan_1

1 answer

Find the equation of the parabola that satisfies the given conditions : Focus (6,0); directrix x = – 6

asked Jul 14, 2014 by thanvigandhi_1

1 answer

Are the pair of statements "The number $x$ is not a rational number." and "The number $x$ is not an irrational number." negation of each other?

asked Jul 14, 2014 by rvidyagovindarajan_1

1 answer

Find the coordinates of the focus, axis of the parabola, the equation of the directrix and the length of the latus rectum for the following : $ x^2=-9y$

asked Jul 14, 2014 by thanvigandhi_1

1 answer

Write the negation of "Every natural number is an integer."

asked Jul 14, 2014 by rvidyagovindarajan_1

1 answer

Write the negation of "The number $2$ is greater than the number $7$."

asked Jul 14, 2014 by rvidyagovindarajan_1

1 answer

Write the negation of "All triangles are not equilateral triangle."

asked Jul 14, 2014 by rvidyagovindarajan_1

1 answer

Write the negation of "$\sqrt 2$ is not a complex number."

asked Jul 14, 2014 by rvidyagovindarajan_1

1 answer

Find the coordinates of the focus, axis of the parabola, the equation of the directrix and the length of the latus rectum for the following : $ y^2=10x$

asked Jul 14, 2014 by thanvigandhi_1

1 answer

Ask Questions, Get Answers