Home
Class 11
MATHS
Maximum and minimum value of 2sin^(2)the...

Maximum and minimum value of `2sin^(2)theta-3sintheta+2` is-

A

`1/4, -7/4`

B

`1/4, 21/4`

C

`21/4, -3/4`

D

`7, 7/8`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • BASIC MATHS,LOGARITHIM, TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION

    ALLEN|Exercise EXERCISE (JA)|16 Videos
  • BASIC MATHS,LOGARITHIM, TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION

    ALLEN|Exercise EXERCISE (JM)|16 Videos
  • BASIC MATHS,LOGARITHIM, TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION

    ALLEN|Exercise DO YOURSELF 12|1 Videos
  • BASIC MATHS LOGARITHIM TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION

    ALLEN|Exercise ILLUSTRATIONS|39 Videos
  • SOLUTION AND PROPERTIES OF TRIANGLE

    ALLEN|Exercise All Questions|62 Videos

Similar Questions

Explore conceptually related problems

18.. Maximum and minimum value of 2sin^(2)theta-3sin theta+2 is

Find the maximum and minimum value of cos^(2) theta- 6 sin theta cos theta + 3 sin^(2) theta + 2 .

Find the maximum and minimum values of cos^(2)theta-6sin theta cos theta+3sin^(2)theta+2

Find maximum and minimum value of cos^(2)theta+sin^(4)theta .

Find the maximum and minimum value of 5cos theta+3sin(theta+(pi)/(6)) for all real values of theta . Find the minimum value of costheta+cos2theta for all real values of theta . Find the maximum and minimum value of cos^(2)theta-6sin thetacos theta+3sin^(2)theta+2 .

The minimum value of 12sin^(2)theta+23cos^(2)theta is

Find the minimum value of 2sin^(2)theta+3cos^(2)theta

The minimum value of 2 sin^2 theta + 3cos^2 theta is

The maximum value of 12sin theta-9sin^(2)theta is

Find the maximum and minimum value of (1)7cos theta+24sin theta(2)4sin theta-3cos theta+7

ALLEN-BASIC MATHS,LOGARITHIM, TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION -EXERCISE (O-1)
  1. If cosx+cosy+cosalpha=0 and sinx + siny + sinalpha=0, then cot((x+y)/2...

    Text Solution

    |

  2. The value of sin(pi/14)sin((3pi)/14)sin((5pi)/14) is

    Text Solution

    |

  3. Maximum and minimum value of 2sin^(2)theta-3sintheta+2 is-

    Text Solution

    |

  4. For theta in(0,pi/2) , the maximum value of sin(theta+pi/6)+cos(theta+...

    Text Solution

    |

  5. Minimum value of the expression cos^2theta-(6 sintheta cos theta) + 3 ...

    Text Solution

    |

  6. The general solution of tan3x=1 is

    Text Solution

    |

  7. If 2tan^(2)theta=sec^(2)theta, then the general solution of theta-

    Text Solution

    |

  8. Number of principle solution(s) of the equation 4.16^(sin^(2)x) = 2^(6...

    Text Solution

    |

  9. If tantheta-sqrt2sectheta=sqrt3 then find the general solution of thet...

    Text Solution

    |

  10. The number of solution of the equation tan^(2)-sec^(10)x+1=0 in (0,10)...

    Text Solution

    |

  11. The solution set of (5+4costheta)(2costheta+1)=0 in the interval [0,2p...

    Text Solution

    |

  12. The equation sinx cosx=2 has:

    Text Solution

    |

  13. If 0<=x<=3pi ,0<=y<=3pi and cos x .sin y = 1 , then find the possible ...

    Text Solution

    |

  14. If (tan2theta+tantheta)/(1-tanthetatan2theta)=0 then the general value...

    Text Solution

    |

  15. cos(alpha-beta)=1a n dcos(alpha+beta)=l/e , where alpha,betamu in [-pi...

    Text Solution

    |

  16. The set of value of the theta satisfying the inequation 2 sin^(2) the...

    Text Solution

    |

  17. The number of solutions of the pair of equations 2s in^2theta-cos2thet...

    Text Solution

    |

  18. Whenever the terms on the two sides of the equation are of different n...

    Text Solution

    |

  19. Whenever the terms on the two sides of the equation are of different n...

    Text Solution

    |

  20. Whenever the terms on the two sides of the equation are of different n...

    Text Solution

    |