Home
Class 9
MATHS
Find A, if : (secA-2)(tan3A-1)=0...

Find A, if :
`(secA-2)(tan3A-1)=0`

Text Solution

Verified by Experts

The correct Answer is:
`A=60^(@) or 15^(@)`
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRICAL RATIOS OF STANDARD ANGLES

    ICSE|Exercise EXERCISE 23(A)|68 Videos

  • TRIGONOMETRICAL RATIOS OF STANDARD ANGLES

    ICSE|Exercise EXERCISE 23(B)|34 Videos

  • TRIGONOMETRICAL RATIOS

    ICSE|Exercise EXERCISE 22(B)|50 Videos

  • TRIGONOMETRY

    ICSE|Exercise TOPIC -4 ( COMPLEMENTARY ANGLES ) (4 MARKS QUESTIONS )|4 Videos

Similar Questions

Explore conceptually related problems

Find the magnitude of angle A, if : 2tan3Acos3A-tan3A+1=2cos3A

Given : tan A=4/3 , find : ("cosec"A)/(cot A- secA)

Prove that: (tanA+ sec A-1)/(tan A-secA+1)=(cosA)/(1-sinA)

If (2 cos 2A-1) (tan 3A-1)= 0 , find all possible values of A

Prove that: " "( tan A + sinA)/(tanA - sinA) = (sec A +1)/(secA -1)

Prove that : (secA-tanA)/(secA+tanA)=1-2secAtanA+2tan^(2)A

Prove: (secA+tanA-1)(secA-tanA+1)=2tanA

Prove that : (secA+1)/(tanA)=(tanA)/(secA-1)

(tanA+secA-1)/(tanA-secA+1)=(1+sinA)/(cosA)

Prove that (tanA+secA-1)/(tanA-secA+1)=(1+sinA)/(cosA) .

ICSE-TRIGONOMETRICAL RATIOS OF STANDARD ANGLES-EXERCISE 23(C)
  1. Find A, if : (secA-2)(tan3A-1)=0

    Text Solution

    |

  2. Solve the following equations for A, if : 2sinA=1

    Text Solution

    |

  3. Solve the following equations for A, if : 2cos2A=1

    Text Solution

    |

  4. Solve the following equations for A, if : sin3A=sqrt(3)/2

    Text Solution

    |

  5. Solve the following equations for A, if : sec2A=2

    Text Solution

    |

  6. Solve the following equations for A, if : sqrt(3)tanA=1

    Text Solution

    |

  7. Solve the following equations for A, if : tan3A=1

    Text Solution

    |

  8. Solve the following equations for A, if : 2sin3A=1

    Text Solution

    |

  9. Solve the following equations for A, if : sqrt(3)cot2A=1

    Text Solution

    |

  10. Calculate the value of A, if : (sinA-1)(2cosA-1)=0

    Text Solution

    |

  11. Calculate the value of A, if : (tanA-1)(cosec3A-1)=0

    Text Solution

    |

  12. Calculate the value of A, if : (sec2A-1)(cosec3A-1)=0

    Text Solution

    |

  13. Calculate the value of A, if : cos3A.(2sin2A-1)=0

    Text Solution

    |

  14. Calculate the value of A, if : (cosec2A-2)(cot3A-1)=0

    Text Solution

    |

  15. If 2sinx^(@)-1=0 and x^(@) is an acute angle, find: (i) bsinx^(@)" ...

    Text Solution

    |

  16. If 4cos^(2)x^(@)-1=0 and 0 le x^(@) le 90^(@), find : x^(@)

    Text Solution

    |

  17. If 4cos^(2)x^(@)-1=0 and 0 le x^(@) le 90^(@), find : sin^(2)x^(@)+c...

    Text Solution

    |

  18. If 4cos^(2)x^(@)-1=0 and 0 le x^(@) le 90^(@), find : 1/(cos^(2)x^(@...

    Text Solution

    |

  19. If 4sin^(2)theta-1=0 and angle theta is less than 90^(@), find the val...

    Text Solution

    |

  20. If sin3A=1 and 0 le A le 90^(@), find : sin A

    Text Solution

    |

  21. If sin3A=1 and 0 le A le 90^(@), find : cos 2A

    Text Solution

    |