Home
Class 12
MATHS
Prove that the least positive value of x...

Prove that the least positive value of `x ,` satisfying `tanx=x+1,lies `in` the `in`terval(pi/4,pi/2)dot`

Text Solution

Verified by Experts

Let f(x) = tan x and g(x) = x + 1, which could be shown as follows.

From the above the figure, tan x = x + 1 has infinitely many solutions, but the least positive value of `x in ((pi)/(4), (pi)/(2)).`
Promotional Banner

Topper's Solved these Questions

  • GRAPHS OF TRIGONOMETRIC FUNCTIONS

    CENGAGE PUBLICATION|Exercise Exercises|22 Videos
  • GRAPHS OF ELEMENTARY FUNCTIONS

    CENGAGE PUBLICATION|Exercise EXERCISES|34 Videos
  • HIGHT AND DISTANCE

    CENGAGE PUBLICATION|Exercise Archives|3 Videos

Similar Questions

Explore conceptually related problems

Find the smallest positive values of xa n dy satisfying x-y=pi/4a n dcotx+coty=2

There exists a positive real number of x satisfying "cos"(tan^(-1)x)=xdot Then the value of cos^(-1)((x^2)/2)i s pi/(10) (b) pi/5 (c) (2pi)/5 (d) (4pi)/5

The smallest positive x satisfying log_sin x cos x+log_(cos x) (sin x)=2 , when x in (0,pi/2) , is

The smallest positive root of the equation tanx-x=0 lies in (a) (0,pi/2) (b) (pi/2,pi) (pi,(3pi)/2) (d) ((3pi)/2,2pi)

Prove that the function are increasing for the given intervals: f(x)=sinx+tanx-2x ,x in (0,pi/2)

The number of real values of x satisfying tan^-1(x/(1-x^2))+tan^-1 (1/x^3) = (3pi)/(4)

The number of roots of the equation x+2tanx=pi/2 in the interval [0, 2pi] is

The number of values of x in [0 , 4pi] satisfying abs(sqrt3 cos x - sin x) ge 2 , is

The smallest positive value of x (in radians) satisfying the equation (log)_(cosx)((sqrt(3))/2sinx)=2-(log)_(secx)(tanx) is (a) pi/(12) (b) pi/6 (c) pi/4 (d) pi/3

If x+y=pi/4 and tanx+tany=1, then

CENGAGE PUBLICATION-GRAPHS OF TRIGONOMETRIC FUNCTIONS-Exercises
  1. Draw the graph of y = cos^(2)x.

    Text Solution

    |

  2. Find the value of x for which f(x)=sqrt(sinx-cosx) is defined, x in [0...

    Text Solution

    |

  3. Draw the graph of y = tan^(2) x.

    Text Solution

    |

  4. Draw the graph of y = sin x + cos x, x in [0, 2pi].

    Text Solution

    |

  5. Draw the graph of y = [cos x], x in [0, 2pi], where [*] represents the...

    Text Solution

    |

  6. Draw the graph of y = sin pisqrt(x).

    Text Solution

    |

  7. The number of roots of the equation xsinx=1,x in [-2pi,0)uu(0,2pi] is ...

    Text Solution

    |

  8. Evaluate : [lim(x to 0) (tan x)/(x)], where [*] represents the greates...

    Text Solution

    |

  9. For f(x) = sin x - x^(2) + 1, check weather the function is increasing...

    Text Solution

    |

  10. Draw the graph of the function f(x)=m a x{sinx ,cos2x},x in [0,2pi]. W...

    Text Solution

    |

  11. Draw the graph of [y] = sin x, x in [0,2pi] where [*] denotes the grea...

    Text Solution

    |

  12. The total number of solution of sin{x}=cos{x} (where {} denotes the fr...

    Text Solution

    |

  13. Draw the graph of f(x) = |sinx| + |cos x|, x in R.

    Text Solution

    |

  14. Find the number of solutions to cos x = (x)/(10), x gt 0.

    Text Solution

    |

  15. The number of solutions of tanx-m x=0,m >1, in (-pi/2,pi/2) is 1 (b) 2...

    Text Solution

    |

  16. Find the number of solutions to log(e) |sin x| = -x^(2) + 2x in [-(pi)...

    Text Solution

    |

  17. Solve : Cos x le - (1)/(2).

    Text Solution

    |

  18. Prove that the least positive value of x , satisfying tanx=x+1,lies i...

    Text Solution

    |

  19. Draw the graph of y = (x^(2))/(10) sin x.

    Text Solution

    |

  20. Draw the graph of y = (sin x)/(x).

    Text Solution

    |