Home
Class 14
MATHS
यदि sin3Acos(A-26^(@)) है जहाँ 3A एक न्...

यदि `sin3Acos(A-26^(@))` है जहाँ 3A एक न्यूनकोण है तो A का मान ज्ञात करे

A

`29^(@)`

B

`26^(@)`

C

`23^(@)`

D

`28^(@)`

लिखित उत्तर

Verified by Experts

The correct Answer is:
a
`sin3A=cos(A-90^(@))`
`4A=116^(@)`
`A=29^(@)`
Promotional Banner

टॉपर्स ने हल किए ये सवाल

  • TIME, DISTANCE & TRAIN

    RAKESH YADAV|Exercise Exercise|201 Videos
RAKESH YADAV-TRIGONOMETRY-Exercise
  1. The value of sin^(2)65^(@)+sin^(2)25^(@)+cos^(2)35^(@)+cos^(2)55^(@) i...

    Text Solution

    |

  2. ABCD एक आयत है और AC उसका विकर्ण है तो (tan^(2)angleCAD+1)sin^(2)angl...

    Text Solution

    |

  3. यदि sin3Acos(A-26^(@)) है जहाँ 3A एक न्यूनकोण है तो A का मान ज्ञात कर...

    Text Solution

    |

  4. if sin(theta+18^(@))=cos60^(@)(0^(@) lt theta lt 90^(@)), then the val...

    Text Solution

    |

  5. if tan2theta.tan3theta=1, where 0^(@) lt theta lt 90^(@) then the valu...

    Text Solution

    |

  6. यदि theta एक न्यूनकोण है और tan(4theta-50^(@))=cot(50^(@)-theta) है त...

    Text Solution

    |

  7. The value of sin^(2)22^(@)+sin^(2)68^(@)+cot^(2)30^(@) is

    Text Solution

    |

  8. Find the value of tan4^(@)" "tan 43^(@)" "tan47^(@)" "tan86^(@).

    Text Solution

    |

  9. The value of cot41^(@).cot42^(@).cot47^(@).cot48^(@).cot49^(@).

    Text Solution

    |

  10. निम्नलिखित का मान है? ((tan20^(@))^(2))/((co s ec70^(@))^(2))+((cot2...

    Text Solution

    |

  11. निम्नलिखित का मान है ? ((sin47^(@))/(cos43^(@)))^(2)+((cos43^(@))/(s...

    Text Solution

    |

  12. The value of esxpression sin^(2)1^(@)+sin^(2)11^(@)+sin^(2)21^(@)+si...

    Text Solution

    |

  13. If alpha+beta90^(@) then the expression (tanalpha)/(tanbeta)+sin^(2)...

    Text Solution

    |

  14. यदि cos20^(@)=m और 70^(@)=n है तो m^(2)+n^(2) का मान बताएं

    Text Solution

    |

  15. If sin(90^(@)-theta)+theta=sqrt(2)cos(90^(@)-theta) then the value of ...

    Text Solution

    |

  16. If sinA-cosA=(sqrt(3)-1)/(2), then the value of sinA.cosA is

    Text Solution

    |

  17. If (sec^(2)70^(@)-cot^(2)20^(@))/(2(co s ec^(2)59^(@)-tan^(2)31^(@)))=...

    Text Solution

    |

  18. (tantheta+cottheta)/(tantheta-cottheta)=2,(0 le theta le 90^(@)) है तो...

    Text Solution

    |

  19. If (sintheta+costheta)/(sintheta-costheta)=3 then the value of sin^(4)...

    Text Solution

    |

  20. यदि tan15^(@)=2-sqrt(3), है तो tan15^(@)cot75^(@)+tan75^(@)cot15^(@) ...

    Text Solution

    |