Home
Class 12
MATHS
If pv=81," then "(dp)/(dv)" at "v=9 is e...

If `pv=81," then "(dp)/(dv)" at "v=9` is equal to

A

1

B

`-1`

C

2

D

`sqrt(9)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • DIFFERENTIATION

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP - I : CHAPTER 11)|19 Videos

  • DIFFERENTIATION

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP - II : CHAPTER 11)|24 Videos

  • DIFFERENTIAL EQUATIONS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|14 Videos

  • INTEGRATION - DEFINITE INTEGRALS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|20 Videos

Similar Questions

Explore conceptually related problems

If v = log ( 1 + x^(2)) and u = x - tan^(-1) x then ,( du)/( dv) is equal to

Let v and a be the instantaneous velocity and acceleration of a particle moving in a plane. Then rate of change of speed (dv)/(dt) of the particle is equal to

If e^(v)+e^(u)=e^(v+u) , then (du)/(dv)=

If u=3x^(12) and v=x^(6) then (du)/(dv) is

If x = "log"_(0.1) 0.001, y = "log"_(9) 81 , then sqrt(x - 2sqrt(y)) is equal to

The vlaue of tan 81^(@) - tan 63^(@) - tan 27^(@)+ tan 9^(@) is equal to

The Speed Of a particle moving in a plane is equal to the magnitude of its instantaneous velocity, v=|vl= sqrt(v_x^2+v_y^2). (a) Show that the rate of change of the speed is (dv)/(dt)=(v_xa_x+v_ya_y)/(sqrt(v_x^2+v_y^2)) . (b) Show that the rate of change of speed can be expressed as (dv)/(dt) is equal to a_t the component of a that is parallelto v.

Evaluate int (dv)/(1+2v)