Home
Class 11
MATHS
The value of (1-tan^(2)15^(@))/(1+tan^(2...

The value of `(1-tan^(2)15^(@))/(1+tan^(2)15^(@))` is

A

`(m-1)/(m^(2)+1)`

B

`(2m)/(m^(2)+1)`

C

`(m^(2)-1)/(m^(2)+1)`

D

`(m+1)/(m^(2)+1)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC FUNCTIONS

    KUMAR PRAKASHAN|Exercise TEXTBOOK ILLUSTRATIONS FOR PRACTICE WORK|33 Videos

  • TRIGONOMETRIC FUNCTIONS

    KUMAR PRAKASHAN|Exercise SOLUTION OF NCERT EXEMPLAR PROBLEMS (SHORT ANSWER TYPE QUESTIONS)|19 Videos

  • TRIGONOMETRIC FUNCTIONS

    KUMAR PRAKASHAN|Exercise PRACTICE WORK|122 Videos

  • STRAIGHT LINES

    KUMAR PRAKASHAN|Exercise Question of Module (Knowledge Test :)|18 Videos

Similar Questions

Explore conceptually related problems

( 1-tan ^(2) 45^(@) )/( 1+tan ^(2) 45^(@)) =

Find the value of : tan(15^(@))

The value of (3 tan 5^@-tan^3 5^@)/(1-3tan^2 5^@) is :-

The value of tan1^(@) tan2^(@) tan 3^(@)…..tan89^(@) is

Find the value of tan^(-1)("tan"(2pi)/3) .

Answer the following by a number or a word or a sentence : What is the value (tan1^(@)tan2^(@)tan3^(@)…..tan89^(@)) ?

If 3 cot A = 4 , check whether (1-tan^(2)A)/(1+tan^(2)A)=cos^(2)A-sin^(2)A is true or not.

Find the value of 4tan^(-1)(1/5)-tan^(-1)(1/(70))+tan^(-1)(1/(99))

The value of sec[tan^(-1)((b+a)/(b-a))-tan^(-1)(a/b)] is ____

Find the approximate values of (i) sin 1^(@) (ii) tan 2^(@)

KUMAR PRAKASHAN-TRIGONOMETRIC FUNCTIONS -TEXTBOOK BASED MCQS
  1. sin(12^(@))sin(48^(@))sin(54^(@))= ………..

    Text Solution

    |

  2. The value of (1-tan^(2)(15^(@)))/(1+tan^(2)(15^(@))) is ………..

    Text Solution

    |

  3. The value of (1-tan^(2)15^(@))/(1+tan^(2)15^(@)) is

    Text Solution

    |

  4. cos^(2)(7(1^@)/(2))-cos^(2)(37(1^(@))/(2))= …………

    Text Solution

    |

  5. The value of cos(480^(@))sin(150^(@))+sin(600^(@))cos(390^(@)) is …………...

    Text Solution

    |

  6. cos((2pi)/(7))+cos((4pi)/(7))+cos((6pi)/(7))=

    Text Solution

    |

  7. If (tanx)/(1)=(tany)/(2)=(tanz)/(3)(ne0)andx+y+z=pi then which of the ...

    Text Solution

    |

  8. cos((pi)/(7))cos((2pi)/(7))cos((4pi)/(7))= ………..

    Text Solution

    |

  9. sin((pi)/(16))sin((3pi)/(16))sin((5pi)/(16))sin((7pi)/(16))= ………..

    Text Solution

    |

  10. cos^(2)((pi)/(12))+cos^(2)((3pi)/(12))+cos^(2)((5pi)/(12))= …………

    Text Solution

    |

  11. If A=125 and x=sinA^(@)+cosA^(@) then ………..

    Text Solution

    |

  12. The value of sqrt(3)cosec20^(@)-sec20^(@) is …………

    Text Solution

    |

  13. If cosalpha=-(4)/(5),(pi)/(2)ltalphaltpi then tan((alpha)/(2))= ……….

    Text Solution

    |

  14. If tanx=-(4)/(3),(pi)/(2)ltxltpi then sin((x)/(2))= …………

    Text Solution

    |

  15. One of the roots of 4x^(3)-3x=(1)/(2) is ………

    Text Solution

    |

  16. The value of cos(67(1^(@))/(2)) is ………….

    Text Solution

    |

  17. If one of the roots of 25cos^(2)theta+5costheta-12=0 is alpha then the...

    Text Solution

    |

  18. If cosalpha=-0.6andpiltalphalt(3pi)/(2) then tan((alpha)/(4)) = ………..

    Text Solution

    |

  19. If tanx=(b)/(a) then acos(2x)+bsin(2x) = ……….

    Text Solution

    |

  20. If cosA=(3)/(4) then 32sin((A)/(2))sin((5A)/(2)) = ……………

    Text Solution

    |