Home
Class 11
MATHS
If sin theta, cos theta, tan theta are i...

If `sin theta, cos theta, tan theta` are in GP then `cos^(9)theta + cos^(6) theta + 3 cos^(5) theta=`

A

1

B

-1

C

0

D

2

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMERTIC RATIOS

    AAKASH SERIES|Exercise EXERCISE- II|52 Videos

  • TRIGNOMETRIC EQUATIONS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (PRACTICE SHEET (ADVANCED) INTEGER TYPE QUESTIONS)|2 Videos

  • TRIGONOMETRIC EQUATIONS

    AAKASH SERIES|Exercise Practice Exercise|49 Videos

Similar Questions

Explore conceptually related problems

If sin theta , cos theta, tan theta are in G.P then cos^(9) theta + cos^(6) theta + 3 cos^(5) theta -1 =

If cos theta=-cos theta, then theta is

If 1/6 sin theta, cos theta, tan theta are in G.P. then theta is equal to (n in Z)

4 sin 5 theta cos 3 theta sin 2 theta

If sin theta + sin^(2) theta =1 then cos^(4) theta + cos^(8) theta + 2 cos^(6) theta =

If sin theta + cos theta = a " then " sin^(4) theta + cos^(4) theta =

sin 3 theta * cos^(3) theta + cos 3 theta * sin^(3) theta =

If 4 sin theta + 3 cos theta =5 then tan theta =

If sin theta _1+ sin theta _2+ sin theta _3=3 " then " cos theta _1 + cos theta _2 + cos theta_3 =

If sin theta.cos theta = k then find the sin theta + cos theta .

AAKASH SERIES-TRIGONOMERTIC RATIOS-PRACTICE EXERCISE
  1. If 1+4 tan theta = 4 sec theta then cos theta=

    Text Solution

    |

  2. 1-(sin^(2) theta)/(1+cos theta) + (1+cos theta)/(sin theta) - (sin the...

    Text Solution

    |

  3. If sin theta, cos theta, tan theta are in GP then cos^(9)theta + cos^(...

    Text Solution

    |

  4. (1+ tan alpha tan beta)^(2) + (tan beta - tan beta)^(2)=

    Text Solution

    |

  5. If 2 Cos^(2)B - 1 = Tan^(2) A then Cos A Cos B =

    Text Solution

    |

  6. (sin^(2)alpha)/(1+cot^(2) alpha) + (tan^(2)alpha)/((1+tan^(2) alpha)^(...

    Text Solution

    |

  7. If (2 sin theta )/(1+ cos theta + sin theta )=x, find the value of (1...

    Text Solution

    |

  8. If Sin^(2) theta + 3 Cos theta -2 =0 then Cos^(3) theta + Sec^(3) thet...

    Text Solution

    |

  9. If cos^(2) x + cos^(4) x =1 then tan^(2) x + tan^(4) x=

    Text Solution

    |

  10. If sin theta + sin^(2) theta =1 then cos^(4) theta + cos^(8) theta + 2...

    Text Solution

    |

  11. If sqrt((1+cos alpha)/(1-cos alpha))=cosec alpha + cot alpha, then the...

    Text Solution

    |

  12. If cos theta - sin theta = sqrt(2) sin theta " then " cos theta + si...

    Text Solution

    |

  13. If Cos theta - Sin theta = sqrt(2) Cos theta then Cos theta + Sin thet...

    Text Solution

    |

  14. If a = Cos theta - Sin theta, b = Cos^(3) theta - Sin^(3) theta, then

    Text Solution

    |

  15. If sec^(6) theta - tan^(6) theta = a sec^(4) theta + b sec^(2) theta +...

    Text Solution

    |

  16. If x=r cos alpha cos beta cos gamma , y= cos alpha cos beta sin gamma...

    Text Solution

    |

  17. If x= cot theta + cos theta , y= cot theta - cos theta , " then " (x^...

    Text Solution

    |

  18. If tan theta + sin theta = m, tan theta - sin theta = n " then " (m^(...

    Text Solution

    |

  19. If x= a cos^(2) theta sin theta and y= a sin^(2) theta cos theta , "...

    Text Solution

    |

  20. One possible representation of points (x, y) on x^(2)y^(2) =x^(2) +y^(...

    Text Solution

    |