Home
Class 12
MATHS
Maximum value of (2 cos ^2 18^@ -sin 1...

Maximum value of
`(2 cos ^2 18^@ -sin 18^@) (cos theta +3 sqrt2 cos (theta +pi/4)+3)` is

A

`5 sqrt2`

B

`4 sqrt5`

C

3

D

8

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • TS EAMCET 2019 (3 MAY SHIFT 1)

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise Mathematics|79 Videos

  • TS EAMCET 2019 (4 MAY SHIFT 2)

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|80 Videos

Similar Questions

Explore conceptually related problems

The value of cos theta + 3sqrt(2) sin ( theta + pi//4) + 6 lies between

If sin theta+cos theta=sqrt(2)cos A then theta=

The maximum value of 3 cos theta + 4 sin theta is

If cos theta + sqrt(3) sin theta = 2 then theta =

The maximum value of the expression (1)/( sin^(2) theta + 3 sin theta cos theta + 5cos^(2) theta) is

The least value of cos^(2) theta - 6 sin theta.cos theta+ 3 sin^(2) theta+2 is

The value of (cos2 theta + i sin 2 theta)^5(sin theta+i cos theta)^4 is

If sin theta =1//sqrt(3) , then cos 2 theta =

TS EAMCET PREVIOUS YEAR PAPERS-TS EAMCET 2019 (3 MAY SHIFT 2)-MATHEMATICS
  1. For |x| lt 4/3, the approximate value of 1/((4-3x)^(1/2)) is

    Text Solution

    |

  2. If (2x+7) / ((x^2+4)(x^2+9)(x^2+16)) = (Ax+l)/ (x^2+4)+(Bx+m)/(x^2+9...

    Text Solution

    |

  3. Maximum value of (2 cos ^2 18^@ -sin 18^@) (cos theta +3 sqrt2 cos (...

    Text Solution

    |

  4. If 0 lt A lt B lt pi/4, cos ( A+B) =(11)/(61) and sin (A-B) =(24)/(25)...

    Text Solution

    |

  5. If A+B +C = 270^@, then cos 2A + cos 2B +cos 2C +4sin A sin B sin C=

    Text Solution

    |

  6. The general solution of cos 2x- 2 tan x+2 =0 is

    Text Solution

    |

  7. If alpha and beta are the roots of the quadratic equation 3x^2 -16 x+5...

    Text Solution

    |

  8. sinh [ log (2+sqrt5)] +cosh [log (2+sqrt3)]=

    Text Solution

    |

  9. p1,p2,p3 are the altitudes of a triangle ABC drawn from the vertices A...

    Text Solution

    |

  10. If in triangle ABC, a^2+2bc-(b^2+c^2)= ab sin (C/2) cos( C/2) , then c...

    Text Solution

    |

  11. If p1,p2,p3 are the altitudes of a triangle ABC from the vertices A,B...

    Text Solution

    |

  12. Vectors a,b,c,d are such that (axx b)xx(cxxd)=O , P1 and P2 are two pl...

    Text Solution

    |

  13. If OA = hati +2hatj+3 hatk and OB = 4 hati +hatk are the position vect...

    Text Solution

    |

  14. A vector a of length 2 units is making an angle 60^@ with each of the...

    Text Solution

    |

  15. Let a be a non zero vector . If X= hati xx(axxhati),y =hatjxx(axx h...

    Text Solution

    |

  16. If r= hati +hatj+t (2hati-hatj+hatk) and r= 2hati+hatj-hatk+s (3 hati-...

    Text Solution

    |

  17. If r is a unit vector satisfying r xx a =b , |a|=2 and |b| = sqrt3, th...

    Text Solution

    |

  18. The variance of the data 2,3,5,11,13,17,19 is nearly

    Text Solution

    |

  19. The approximate value of the mean deviation about the mean for the fol...

    Text Solution

    |

  20. If A and B are two events such that P (barA)=0.3 P(B) =0.4 and P(A c...

    Text Solution

    |