Home
Class 11
MATHS
Assertion (A): tantheta+2tan2theta+4tan4...

Assertion (A): `tantheta+2tan2theta+4tan4theta+8tan8theta+16cot16theta=cottheta`
Reason (R ): `cottheta-tantheta=2 cot2theta`

A

A is true, R is true and R is correct explanation of A

B

A is true, R is true and R is not correct explanation of A

C

A is true, R is false

D

A is false, R is true

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MULTIPLE & SUBMULTIPLE ANGLES

    AAKASH SERIES|Exercise EXERCISE-II|52 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

tantheta+2tan2theta+4tan4theta+8tan8theta 16tan16theta+32cot32theta=

If tantheta+tan2theta+tantheta. tan2theta=1 then theta =

If tan theta + tan 2theta + tan theta tan2theta =1 then theta =

If tan theta + tan 2theta = tan 3theta , then theta =

If tantheta+tan4theta+tan7theta=tanthetatan4thetatan7theta then theta =

If 3tantheta=cot theta then theta =

tan theta + 2 tan 2 theta + 4 tan 4theta + 8 tan 8 theta + 16 tan 16 theta + 32 cot 32 theta =

If tan theta + tan 2theta + tan 3theta = 0 then theta =

AAKASH SERIES-MULTIPLE & SUBMULTIPLE ANGLES-PRACTICE EXERCISE
  1. If 4 sin(60^(@) + theta ) sin (60^(@) - theta )-1=k cos 2 theta , th...

    Text Solution

    |

  2. cos6^(@) cos42^(@) cos66^(@) cos78^(@) =

    Text Solution

    |

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

    Text Solution

    |

  4. cos (pi/7) cos ((2pi)/(7) ) cos ( (4pi )/(7) ) =

    Text Solution

    |

  5. "sin"pi/14" sin"(3pi)/14" sin"(5pi)/14" sin"(7pi)/5=

    Text Solution

    |

  6. "sin"^(2)pi/8" + sin"^(2)(3pi)/8" + sin"^(2)(5pi)/8" + sin"^(2)(7pi)/8...

    Text Solution

    |

  7. "sin"^(4)pi/8" +sin"^(4)(3pi)/8" +sin"^(4)(5pi)/8" +sin"^(4)(7pi)/8=

    Text Solution

    |

  8. Show that (1+ cos. (pi)/(8))(1+cos. (3pi)/(8))(1+ cos. (5pi)/(8))(1+ c...

    Text Solution

    |

  9. If A=2 sin^(2) theta - cos 2 theta , then

    Text Solution

    |

  10. If x+y+z =xyz, then sum(2x)/(1-x^(2))=

    Text Solution

    |

  11. If xy+yz+zx=1 , then sum(x+y)/(1-xy)=

    Text Solution

    |

  12. If sqrt(1+sinA)+sqrt(1-sinA)=2"sin"A/2" then"A/2 in

    Text Solution

    |

  13. If A=340^(@) then 2 sin A//2=

    Text Solution

    |

  14. I : If 180^(@) lt theta lt 270^@ , sin theta = -3//5 " then " cos the...

    Text Solution

    |

  15. If A=cos^(2)10^(@)+cos^(2)50^(@)+cos^(2)70^(@), B="sin"^(4)(3pi)/8-"...

    Text Solution

    |

  16. If A=(2sinx)/(sin3x)+(tanx)/(tan3x), B=cos10^(@)cos30^(@)cos50^(@)cos...

    Text Solution

    |

  17. Assertion (A): tantheta+2tan2theta+4tan4theta+8tan8theta+16cot16theta=...

    Text Solution

    |

  18. Assertion (A): cos^(3)x+cos^(3)(120^(@)+x)+cos^(3)(120^(@)-x)=3/4cos3x...

    Text Solution

    |

  19. If 0ltxltpi and cosx+sinx=1/2 then tanx=

    Text Solution

    |

  20. If A=sin^(2) theta + cos^(4) theta , then for all values of theta ,...

    Text Solution

    |