Home
Class 12
MATHS
The general solution of the equation sin...

The general solution of the equation `sin^100 x - cos^100 x =1` is (where n `in`I)

A

`2npi+pi/3, n in I`

B

`n pi+pi/2, n in I`

C

`n pi+pi/4, n in I`

D

`2n pi-pi/3, n in I`

Text Solution

Verified by Experts

The correct Answer is:
B

We have `sin^(100)x-cos^(100)x=1`
or `sin^(100)x=1+cos^(100)x`
Since L.H.S. `le 1` and R.H.S. `ge 1`, L.H.S. = R.H.S.=1.
Then, `x=n pi+pi/2, n in I`
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC EQUATIONS

    CENGAGE|Exercise Exercise (Multiple)|31 Videos
  • TRIGONOMETRIC EQUATIONS

    CENGAGE|Exercise Exercise (Comprehension)|20 Videos
  • TRIGONOMETRIC EQUATIONS

    CENGAGE|Exercise Exercise 4.9|6 Videos
  • TRIGNOMETRIC RATIOS IDENTITIES AND TRIGNOMETRIC EQUATIONS

    CENGAGE|Exercise Question Bank|34 Videos
  • TRIGONOMETRIC FUNCTIONS

    CENGAGE|Exercise SINGLE CORRECT ANSWER TYPE|38 Videos

Similar Questions

Explore conceptually related problems

The general solution of the equation sinx - cosx = 1 is (where n in I ) :

The general solution of the equation 2 sin x+1=0 is:

The general solution of equation sin^(50)x-cos^(50)x=1

The general solution of the equation cos x cos6x=-1 is

The general solution of the equation sin(11x)+cos(2x)=-2, is

The general solution of the equation sin^(2)x + cos^(2)3x =1 is equal to : (where n in I )

The general solution of the equation sin^(110)x-cos^(100)x=1 is 2n pi+(pi)/(3),n in I(b)npi+(pi)/(2),n in In pi+(pi)/(4),n in I(d)2n pi=(pi)/(3),n in I

The general solution of the equation sin^(4)x+cos^(4)x=sin x cos x is

The general solution of the equation "cos" x"cos"6x = -1 , is

CENGAGE-TRIGONOMETRIC EQUATIONS-Exercise (Single)
  1. The number of solutions of sum(r=1)^5cosrx=5 in the interval [0,2pi] i...

    Text Solution

    |

  2. If cos 3x+sin (2x-(7pi)/6)=-2, then x is equal to (k in Z)

    Text Solution

    |

  3. The general solution of the equation sin^100 x - cos^100 x =1 is (wher...

    Text Solution

    |

  4. The sum of all the solutions in [0, 4pi] of the equation tan x+ cot x+...

    Text Solution

    |

  5. The total number of solutions of loge |sin x| = -x^2 +2x in [0,pi] is...

    Text Solution

    |

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

    Text Solution

    |

  7. The set of all xin((-pi)/2,pi/2) satisfying |4sinx-1|<sqrt(5) is given...

    Text Solution

    |

  8. If roots of the equation 2x^2-4x+2sintheta-1=0 are of opposite sign, t...

    Text Solution

    |

  9. If |2 sin theta-cosec theta| ge 1 and theta ne (n pi)/2, n in Z, then

    Text Solution

    |

  10. Which of the following is not the solution of the equation sin 5x=16 s...

    Text Solution

    |

  11. The number of solutions of the equation |2 sin x-sqrt(3)|^(2 cos^(2)...

    Text Solution

    |

  12. One root of the equation cos x-x+1/2=0 lies in the interval (A...

    Text Solution

    |

  13. The smallest positive x satisfying the equation (log)(cosx)sinx+(log)(...

    Text Solution

    |

  14. The number of ordered pairs which satisfy the equation x^2+2xsin(x y)+...

    Text Solution

    |

  15. Consider the system of linear equations in x, y, and z: (sin 3 theta...

    Text Solution

    |

  16. The equation sin^4x-2cos^2x+a^2=0 can be solved if -sqrt(3)lt=alt=sqrt...

    Text Solution

    |

  17. If the inequality sin^2x+acosx+a^2>1+cosx holds for any x in R , then...

    Text Solution

    |

  18. sinx+cosx=y^2-y+a has no value of x for any value of y if a belongs to...

    Text Solution

    |

  19. The number of solutions of [sin x+ cos x]=3+ [- sin x]+[-cos x] (where...

    Text Solution

    |

  20. The equation cos^8 x + b cos^4 x + 1 = 0 will have a solution if b be...

    Text Solution

    |