Home
Class 12
MATHS
If sin theta = 3/5, tan phi = 8/15 " and...

`If sin theta = 3/5, tan phi = 8/15 " and " theta " and " phi " lie in the first and third quadrants respecitively, find " cosec(theta + phi)`

Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC RATIOS OF COMPOUND ANGLES

    CHHAYA PUBLICATION|Exercise Short Answer Type Questions|26 Videos

  • TRIGONOMETRIC RATIOS OF COMPOUND ANGLES

    CHHAYA PUBLICATION|Exercise Long Answer Type Questions|12 Videos

  • TRIGONOMETRIC RATIOS OF COMPOUND ANGLES

    CHHAYA PUBLICATION|Exercise Multiple Choice Type Questions|12 Videos

  • TRIGONOMETRIC RATIOS OF ASSOCIATED ANGLES

    CHHAYA PUBLICATION|Exercise SAMPLE QUESTIONS FOR COMPETITIVE EXAMS - ASSERTION-REASON TYPE|2 Videos

  • TRIGONOMETRIC RATIOS OF MULTIPLE ANGLES

    CHHAYA PUBLICATION|Exercise Comprehension Type|6 Videos

Similar Questions

Explore conceptually related problems

If sin theta = -3/5 and theta lies in the third quadrant, find tan theta and "sec" theta .

The value of sin theta and tan theta if cos theta=(-12/13) and theta lies in the third quadrant is

If tan 2theta . Tan 3 theta =1 , then sin5theta =

If tan theta =4/5 and tan phi =5/4, then the value of (theta+phi) is-

If " "sec theta = 5/4, "cosec" phi = 13/12 " then find the value of " sec ( theta + phi).

If tan theta = 5/12 and sin theta is negative, find cos theta .

If " " tan theta = 1/7 " and " tan phi = 1/3 " show that", cos 2 theta = sin 4phi

If sin theta sin phi - cos theta cos phi+1 =0 then the value of 1+ cot theta tan phi is-

If 2 tan theta = cot phi, "show that" cos(theta - phi) = 3 cos ( theta + phi).

If (1+ tan theta) (1+ tan phi)=2, then the value of (theta+ phi) is

CHHAYA PUBLICATION-TRIGONOMETRIC RATIOS OF COMPOUND ANGLES-Very Short Answer type Questions
  1. Find the values: sec(-75^(@))

    Text Solution

    |

  2. Prove that, tan 75^(@) - cot 75^(@) = 4 sin 60^(@)

    Text Solution

    |

  3. Prove that, cos alpha + cos(120^(@) + alpha) + cos (120^(@) - alpha)...

    Text Solution

    |

  4. Prove that, tan 35^(@) + tan 10^(@) + tan35^(@) tan 10^(@) = 1

    Text Solution

    |

  5. Prove that, tan 8alpha - tan 5 alpha - tan 3 alpha = tan 8alpha tan ...

    Text Solution

    |

  6. Prove that, tan43^(@) = (cos2^(@) - sin2^(@))/(cos2^(@) + sin2^(@))

    Text Solution

    |

  7. Prove that, tan62^(@) = 2tan 34^(@) + tan28^(@)

    Text Solution

    |

  8. If costheta =4/5,then find the value of cos2theta.

    Text Solution

    |

  9. If A,B,C are positive acute angles and tan A =4/7, tanB =1/7, tanC=1/8...

    Text Solution

    |

  10. Find cos( theta + phi) " where " theta " and " phi " are acute angles ...

    Text Solution

    |

  11. If " "sec theta = 5/4, "cosec" phi = 13/12 " then find the value of " ...

    Text Solution

    |

  12. If tan alpha = 7/5, tan beta=5/7 " then find the values of " tan (alph...

    Text Solution

    |

  13. If sin theta = 3/5, tan phi = 8/15 " and " theta " and " phi " lie in ...

    Text Solution

    |

  14. Prove that, (cos 20^(@) + sin 20^(@))/(cos 20^(@) - sin 20^(@)) = tan ...

    Text Solution

    |

  15. Prove that, "cosec" (theta + phi)=("cosec" theta "cosec" phi)/(cot t...

    Text Solution

    |

  16. Prove that, cos 67^(@)24' cos7^(@)24' + cos82^(@)36' cos22^(@)36' =1...

    Text Solution

    |

  17. Prove that, tan (B - C) + tan (C -A ) + tan (A -B) = tan (B-C) tan (...

    Text Solution

    |

  18. Show that the value of each of the following expressions is independen...

    Text Solution

    |

  19. Show that the value of each of the following expressions is independen...

    Text Solution

    |

  20. If " "cos(alpha - beta) + 1 = 0," show that ", cosalpha + cos beta = 0...

    Text Solution

    |