Home
Class 12
MATHS
By rotating the coordinate axes in the p...

By rotating the coordinate axes in the positive direction about the origin by an angle `alpha`, if the point (1, 2) is transformed to `((3sqrt(3)-1)/(2sqrt(2)),(sqrt(3)+3)/(2sqrt(2)))` in new coordinate system Then, `alpha` =

A

`(pi)/(3)`

B

`(pi)/(6)`

C

`(pi)/(9)`

D

`(pi)/(12)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • TS EAMCET 2017

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|80 Videos

  • TS EAMCET 2018 (7 MAY SHIFT 1)

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|80 Videos
TS EAMCET PREVIOUS YEAR PAPERS-TS EAMCET 2018 (4 MAY SHIFT 1)-Mathematics
  1. An executive in a company makes on an average 5 telephone calls per ho...

    Text Solution

    |

  2. A quadrilateral ABCD is divided by the diagonal AC into two triangles ...

    Text Solution

    |

  3. By rotating the coordinate axes in the positive direction about the or...

    Text Solution

    |

  4. Let a ne0,bne0, c be three real numbers and L(p,q)=(ap+bq+c)/(sqrt(a^(...

    Text Solution

    |

  5. The incentre of the triangle formed by the straight line having 3 as X...

    Text Solution

    |

  6. The equation of the straight line in the normal form which is parallel...

    Text Solution

    |

  7. A pair of straight lines is passing through the point (1, 1). One of t...

    Text Solution

    |

  8. If the pair of lines 6x^(2)+xy-y^(2)=0 and 3x^(2)-axy-y^(2)=0,a gt 0 h...

    Text Solution

    |

  9. If the chord L -=y-mx-1=0 of the circle S-=x^(2)+y^(2)-1=0 touches the...

    Text Solution

    |

  10. If y+c=0 is a tangent to the circle x^(2)+y^(2)-6x-2y+1=0 at (a, 4), t...

    Text Solution

    |

  11. If the circles given by S-=x^(2)+y^(2)-14x+6y+33=0 and S'-=x^(2)+y...

    Text Solution

    |

  12. The centre of the circle passing through the point (1,0) and cutting t...

    Text Solution

    |

  13. The equation of the tangent at the point (0, 3) on the circle which cu...

    Text Solution

    |

  14. If two tangents to the parabola y^(2)=8x meet the tangent at its verte...

    Text Solution

    |

  15. Three normals are drawn from the point (c, 0) to the curve y^(2)=x. If...

    Text Solution

    |

  16. If the normal drawn at one end of the latus rectum of the ellipse b^(2...

    Text Solution

    |

  17. A variable tangent to the ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2))=1 ma...

    Text Solution

    |

  18. If the eccentricity of a conic satisfies the equation 2x^(3)+10x-13=0,...

    Text Solution

    |

  19. Assertion (A) If (-1, 3, 2) and (5, 3, 2) are respectively the orthoce...

    Text Solution

    |

  20. The lines whose direction cosines are given by the relations al+bm+cn=...

    Text Solution

    |