Maths-
General
Easy

Question

Conserve the following statements:
A: Angle between 2 ı with not stretchy bar on top minus m ȷ with not stretchy bar on top plus 3 m k with not stretchy bar on top text  and  end text left parenthesis 1 plus m right parenthesis ı with not stretchy bar on top minus 2 m ȷ with not stretchy bar on top plus k with not stretchy bar on top text  is acute  end text not stretchy rightwards double arrow m not an element of open square brackets negative 2 comma negative 1 half close square brackets
text  R: If  end text left parenthesis a with not stretchy bar on top comma b with not stretchy bar on top right parenthesis text  is acute then  end text a with not stretchy bar on top times b with not stretchy bar on top greater than 0 text  If  end text left parenthesis a with not stretchy bar on top comma b with not stretchy bar on top right parenthesis text  is obtuse then  end text a with not stretchy bar on top times b with not stretchy bar on top less than 0

  1. A is false, R is true
  2. A is true, R is false
  3. A is false, R is false
  4. A is true,R is true,R rightwards double arrow A

The correct answer is: A is true,R is true,R rightwards double arrow A

Book A Free Demo

+91

Grade*

Related Questions to study

General
physics

Suppose the gravitational force varies inversely as the nth power of distance the time period of planet in circular orbit of radius R around the sun will be proportional to

Suppose the gravitational force varies inversely as the nth power of distance the time period of planet in circular orbit of radius R around the sun will be proportional to

physicsGeneral
General
physics-

stack A with rightwards arrow on top equals 3 stack i with hat on top plus 2 stack j with ˆ on top minus 5 stack k with ˆ on top and stack B with minus on top equals stack i with ˆ on top plus stack j with ˆ on top plus 2 stack k with ˆ on top Find vertical line stack A with rightwards arrow on top plus 2 stack B with minus on top vertical line

stack A with rightwards arrow on top equals 3 stack i with hat on top plus 2 stack j with ˆ on top minus 5 stack k with ˆ on top and stack B with minus on top equals stack i with ˆ on top plus stack j with ˆ on top plus 2 stack k with ˆ on top Find vertical line stack A with rightwards arrow on top plus 2 stack B with minus on top vertical line

physics-General
General
physics

A thin uniform annular disc (See figure) of mass M has outer radius 4R and inner radius 3R. The work required to take a unit mass from point  on its axix to infinity is....

A thin uniform annular disc (See figure) of mass M has outer radius 4R and inner radius 3R. The work required to take a unit mass from point  on its axix to infinity is....

physicsGeneral
General
chemistry-

Aluminium chloride exists as dimer, A l subscript 2 end subscript C l subscript 6 end subscript in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives

A l subscript 2 end subscript C l subscript 6 end subscript plus 12 H subscript 2 end subscript O2 left square bracket A l left parenthesis H subscript 2 end subscript O right parenthesis subscript 6 end subscript right square bracket to the power of 3 plus end exponent plus 6 C l to the power of minus end exponent

Aluminium chloride exists as dimer, A l subscript 2 end subscript C l subscript 6 end subscript in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives

chemistry-General
A l subscript 2 end subscript C l subscript 6 end subscript plus 12 H subscript 2 end subscript O2 left square bracket A l left parenthesis H subscript 2 end subscript O right parenthesis subscript 6 end subscript right square bracket to the power of 3 plus end exponent plus 6 C l to the power of minus end exponent
General
chemistry-

Which of the following is a non-metal.</strong

Which of the following is a non-metal.</strong

chemistry-General
General
physics

What does not change in the field of central force

What does not change in the field of central force

physicsGeneral
General
physics

If r denotes the distance between the sun and the earth, then the angular momentum of the earth around the sun is proportional to

If r denotes the distance between the sun and the earth, then the angular momentum of the earth around the sun is proportional to

physicsGeneral
General
physics-

Which from the following is a scalar ?

Which from the following is a scalar ?

physics-General
General
physics-

In the above figure stack P with minus on top and stack Q with rightwards arrow on top are two vectors. What from followings is true

In the above figure stack P with minus on top and stack Q with rightwards arrow on top are two vectors. What from followings is true

physics-General
General
physics-

As shown in figure, the block of 2 kg at one end and the other of 3 kg at the other end of a light string are connected. It the system remains stationary find the magnitude and direction of the frictional force, open parentheses g equals 10 text end text m s to the power of 2 end exponent close parentheses

As shown in figure, the block of 2 kg at one end and the other of 3 kg at the other end of a light string are connected. It the system remains stationary find the magnitude and direction of the frictional force, open parentheses g equals 10 text end text m s to the power of 2 end exponent close parentheses

physics-General
General
physics-

A block of mass 300 kg is set into motion on a frictionless horizontal surface with the help of frictionless pulley and a rope system as shown in figure. What horizontal force F should be applied to produce in the block an acceleration of 1 text end text m s to the power of negative 1 end exponent ?

A block of mass 300 kg is set into motion on a frictionless horizontal surface with the help of frictionless pulley and a rope system as shown in figure. What horizontal force F should be applied to produce in the block an acceleration of 1 text end text m s to the power of negative 1 end exponent ?

physics-General
General
physics

The radius of orbit of a planet is two times that of earth. The time period of planet is....... years.

The radius of orbit of a planet is two times that of earth. The time period of planet is....... years.

physicsGeneral
General
physics

If the velocity of planet is given by v=G4 Mb R' then

If the velocity of planet is given by v=G4 Mb R' then

physicsGeneral
General
physics

The period of moon's rotation around the earth is nearly 29 days. If moon's mass were 2 fold its present value and all other things remained unchanged the period of moon’s rotation would be nearly .....days

The period of moon's rotation around the earth is nearly 29 days. If moon's mass were 2 fold its present value and all other things remained unchanged the period of moon’s rotation would be nearly .....days

physicsGeneral
General
physics-

A particle moves with a constant acceleration 2 m/s. Its intial velocity is 10 ms. Fad velocity after second.

A particle moves with a constant acceleration 2 m/s. Its intial velocity is 10 ms. Fad velocity after second.

physics-General