Home
Class 11
MATHS
Prove that cosec A -2 cot 2 A cos A = 2 ...

Prove that `cosec A -2 cot 2 A cos A = 2 sin A.`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • COMPOUND AND MULTIPLE ANGLES

    ICSE|Exercise CHEPTER TEST |23 Videos

  • COMPOUND AND MULTIPLE ANGLES

    ICSE|Exercise EXERCISE 5 (C ) |30 Videos

  • COMPLEX NUMBERS

    ICSE|Exercise Chapter Test|25 Videos

  • CONIC SECTIONS

    ICSE|Exercise Multiple Choice Questions |33 Videos

Similar Questions

Explore conceptually related problems

Prove that : (tan A + cot A) (cosec A - sin A) (sec A - cos A) = 1

Prove that : cos A (1 + cot A) + sin A (1 + tan A) = sec A + cosec A

Prove that : (cosec A - sin A) (sec A - cos A) sec^(2) A = tan A

Prove that: cotA-cot2A="cosec"2A

prove that tan A+cot A=2 cosec 2A

Prove that : cot^(2) A - cot^(2) B = (cos^(2) A - cos^(2) B)/ (sin^(2) A sin^(2) B) = cosec^(2) A - cosec^(2)B

Prove that : (cos A cot A)/ (1 - sin A) = 1 + cosec A

Prove that : (1 + cos A)/(1 - cos A) = (cosec A + cot A)^(2)

Prove that ( "cosec" A - sin A)(sec A- cos A)=(1)/((tan A+ cot A)).

Prove that ( sin 2 A )/( 1 - cos 2 A) = cot A

ICSE-COMPOUND AND MULTIPLE ANGLES -EXERCISE 5 (D)
  1. Prove that (1 - cos 2 theta)/( sin 2 theta) = tan theta.

    Text Solution

    |

  2. Prove that cot alpha - tan alpha =2 cot 2 alpha.

    Text Solution

    |

  3. Prove that cosec A -2 cot 2 A cos A = 2 sin A.

    Text Solution

    |

  4. (1 + sin 2x + cos 2x )/( cos x + sin x ) = 2 cos x

    Text Solution

    |

  5. Show that '(1-cos 2x + sin x)/(sin 2x + cos x) = tan x'

    Text Solution

    |

  6. (sin theta + sin 2 theta)/( 1 + cos theta + cos 2 theta) = tan theta.

    Text Solution

    |

  7. cot A =1/2 (cot ""(A)/(2) - tan "" (A)/(2)).

    Text Solution

    |

  8. (cos A + sin A )/( cos A - sin A) - (cos A - sin A )/(cos A + sin A )...

    Text Solution

    |

  9. (cos A - sin A )/( cos A + sin A ) = sec 2 A - tan 2 A.

    Text Solution

    |

  10. Prove that (sin 2 A )/(1- cos 2 A ) . (1- cos A )/( cos A ) = tan ""(A...

    Text Solution

    |

  11. Prove that : 2 cos A = sqrt ([2 + sqrt (2 (1 + cos 4 A))]) , A in I or...

    Text Solution

    |

  12. tan 2 A = (sec 2 A +1 ) sqrt ( (sec ^(2) A -1)) , A belongs to I or IV...

    Text Solution

    |

  13. Prove that (sec 8A-1)/( sec 4 A -1) = ( tan 8 A)/( tan 2A).

    Text Solution

    |

  14. Prove that tan 2 A - sec A sin A = tan A sec 2 A.

    Text Solution

    |

  15. Prove that (cos A + cos B ) ^(2) +(sin A + sin B) ^(2) = 4 cos ^(2) ((...

    Text Solution

    |

  16. Prove that (cos A - cos B) ^(2) + (sin A - sin B ) ^(2) = 4 sin ^(2) (...

    Text Solution

    |

  17. Prove that: cos ^(4) ""(pi)/(8) + cos ^(4) ""(3pi)/(8) + sin ^(4) "" (...

    Text Solution

    |

  18. sin ^(4) "" (pi)/(8) + sin ^(4) "" (3pi)/(8) + sin ^(4) "" (5pi)/(8) +...

    Text Solution

    |

  19. cos alpha cos(60^(@) - alpha ) cos (60^(@) + alpha ) = 1/4 cos 3 alpha...

    Text Solution

    |

  20. (cos ^(3) alpha - cos 3 alpha )/( cos alpha ) + (sin ^(3)alpha + sin 3...

    Text Solution

    |