Home
Class 12
MATHS
If costheta=((acosphi+b))/((a+bcosphi)),...

If `costheta=((acosphi+b))/((a+bcosphi))`, then the value of tan `(theta//2)` is equal to

A

`sqrt((a-b)/(a+b))"tan"(phi)/(2)`

B

`sqrt((a+b)/(a-b))"tan"(phi)/(2)`

C

`sqrt((a-b)/(a+b))"cos"(phi)/(2)`

D

`sqrt((a+b)/(a-b))"sin"(phi)/(2)`.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER 3

    KCET PREVIOUS YEAR PAPERS|Exercise (MATHEMATICS)|60 Videos

  • MODEL TEST PAPER 5

    KCET PREVIOUS YEAR PAPERS|Exercise Mathematics|60 Videos

Similar Questions

Explore conceptually related problems

The value of tan theta cot theta is:

If sin theta+cos theta=1 then the value of sin 2 theta is equal to

The value of sin (2 tan ^(-1)(.75)) is equal to

tan theta is not defined ,when theta is equal to :

If tan((pi)/(2) sin theta )= cot((pi)/(2) cos theta ) , then sin theta + cos theta is equal to

If sin theta =cos theta ,then the value of 2tan theta+cos^(2)theta is:

If sin theta-cos theta=(1)/(2) ,then find the value of sintheta+costheta

(1+costheta)(1-costheta) is equal to:

Given that sintheta=(a)/(b) ,then tan theta is equal to :

If tan(pi cos theta )= cot (pi sin theta ) ,then cos^(2)(theta -pi//4) is equal to

KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 4-Mathematics
  1. The value of sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+ . . . .+sin^(2)...

    Text Solution

    |

  2. (sin^(3)A+sin3A)/(sinA)+(cos^(3)A-cos3A)/(cosA) is equal to

    Text Solution

    |

  3. If costheta=((acosphi+b))/((a+bcosphi)), then the value of tan (theta/...

    Text Solution

    |

  4. If (sinA+sinB=a) and (cosA+cosB=b) then the value of cos(A+B) is equal...

    Text Solution

    |

  5. The value of tan[2" tan"^(-1)(1)/(5)-(pi)/(4)] is equal to

    Text Solution

    |

  6. The value of cot^(-1)9+"cos ec"^(-1)((sqrt(41))/(4)), is equal to

    Text Solution

    |

  7. Value of [2(Cos15^(@)+isin15^(@))]^(6), is equal to

    Text Solution

    |

  8. The solution set of sin^(2)theta=costheta+(1)/(4), in the interval 0le...

    Text Solution

    |

  9. If the equation hxy+gx+fy+c=0(h!=0), represents a pair of straight l...

    Text Solution

    |

  10. The orthocentre of the triangle whose sides are given by equations x=1...

    Text Solution

    |

  11. The points (1,3) and(5,1) are the opposite vertices of a rectangle. Th...

    Text Solution

    |

  12. If angle C of the triangle ABC is right angle and the coordinates of A...

    Text Solution

    |

  13. The number of common tangents to the circles x^(2)+y^(2)-x=0 and x^(2)...

    Text Solution

    |

  14. The length of the major axis of the ellipse 2x^(2)+y^(2)-8x-2y+1=0 i...

    Text Solution

    |

  15. The focus of the parabola 2y=x^(2)+2x+2 is

    Text Solution

    |

  16. The locus of the point (2-sectheta,1+2tantheta)theta being the paramet...

    Text Solution

    |

  17. The number of normals that can be drawn from an external point to the...

    Text Solution

    |

  18. If f(x)=(x-2)/(x+2),x!= -2 then f^(-1)(x), is equal to

    Text Solution

    |

  19. f(xy)=f(x)+f(y) is true for all

    Text Solution

    |

  20. lim(xto0)(e^(x^(2))-cosx)/(x^(2)), is equal to

    Text Solution

    |