Home
Class 11
MATHS
If none of 2A, 3A is an odd multiple of ...

If none of 2A, 3A is an odd multiple of `pi/2` then prove that
`tan 3A tan2A tanA = tan 3A-tan2A-tanA`

Promotional Banner

Topper's Solved these Questions

  • MULTIPLE & SUBMULTIPLE ANGLES

    AAKASH SERIES|Exercise EXERCISE 3.1 ( LONG ANSWER QUESTION )|9 Videos

  • MULTIPLE & SUBMULTIPLE ANGLES

    AAKASH SERIES|Exercise ADDITIONAL EXERCISE |15 Videos

  • MULTIPLE & SUBMULTIPLE ANGLES

    AAKASH SERIES|Exercise EXERCISE 3.1 (VERY SHORT ANSWER )|7 Videos

  • MULTIPLE & SUBMULTIPLE

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE - II) (LEVEL - II) (Linked Comprehension Type Questions)|5 Videos

  • MULTIPLE PRODUCT OF VECTORS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|62 Videos

Similar Questions

Explore conceptually related problems

If none of 2A and 3A is an odd multiple of pi/2 , then prove that tan3A.tan2A.tanA=tan3A-tan2A-tanA .

Prove that tan 3A. tan2A.tanA = tan3A - tan 2A - tan A

Show that tan 3x tan 2x tan x = tan 3x - tan 2x - tan x

If A + B = (pi)/(2) or (3pi)/(2) then prove that tan A - tan B = 2 tan (A - B).

Show that tan5x - tan3x - tan2x = tan5xtan3xtan2x

If A is not an intergral multiple of pi//2 , prove that tanA+cotA=2"cosec"2A

If A + B + C = 90^(@) and if none of A,B,C is an odd multipl of 90^(@) then P.T. Tan A Tan B + Tan B Tan C + Tan C Tan A = 1 and hence S.T.

If A+B+C = pi //2 , then tanA tanB + tanB tanC+ tan A tan C=

AAKASH SERIES-MULTIPLE & SUBMULTIPLE ANGLES-EXERCISE 3.1 ( SHORT ANSWER QUESTION )
  1. If none of 2A, 3A is an odd multiple of pi/2 then prove that tan 3A ...

    Text Solution

    |

  2. For alpha , beta in R, prove that (cos alpha + cos beta )^(2)+ (sin al...

    Text Solution

    |

  3. IF theta is not an integral muliple of pi/2, prove that tantheta+2ta...

    Text Solution

    |

  4. Prove that (cos3A + sin3A)/(cosA - sin A) = 1+ 2sin 2A.

    Text Solution

    |

  5. Prove that cot(pi/4-theta)=(cos2theta)/(1-sin2theta) and hence find th...

    Text Solution

    |

  6. If theta lies in third Quardrant and Sintheta=(-4)/5. Find the values ...

    Text Solution

    |

  7. If 450^(@)lt theta lt 540^(@) and Sintheta=12/13 then calculate "Sin"t...

    Text Solution

    |

  8. Prove that (sin2A)/((1+Cos2A))((CosA))/(1+CosA)=tan.A/2

    Text Solution

    |

  9. (Cos^(3)theta-Cos3theta)/(Costheta)+(Sin^(3)theta+Sin3theta)/(Sintheta...

    Text Solution

    |

  10. Show that CosA=(Cos3A)/(2Cos2A-1). Hence find the value of Cos15^(@)

    Text Solution

    |

  11. Show that sin A= (sin 3A) /(1+2 cos 2A). Hence find the value of sin 1...

    Text Solution

    |

  12. Prove that tanalpha=(Sin2alpha)/(1+cos2alpha) and hence deduce the val...

    Text Solution

    |

  13. In aDelta^("le") ABC If "Tan"(A)/(2)=(5)/(6),"Tan"(B)/(2)=(20)/(37) th...

    Text Solution

    |

  14. If Costheta=5/13 and 270^(@)ltthetalt360^(@). Evaluate "Sin"theta/2 an...

    Text Solution

    |

  15. If 180^(@)lt thetalt270^(@) and Sintheta=(-4)/5 calculate "Sin"theta/2...

    Text Solution

    |

  16. Show that sin""(pi)/5.sin""(2pi)/5.sin""(3pi)/5.sin""(4pi)/5=5/16.

    Text Solution

    |

  17. Prove that cos ^(2). (pi)/(8) + cos ^(2). (3pi)/(8)+ cos ^(2). (5 pi )...

    Text Solution

    |

  18. Prove that "Cos"^(2)(pi/10)+"Cos"^(2)((2pi)/5)+"Cos"^(2)((3pi)/5)+"Cos...

    Text Solution

    |