Home
Class 12
MATHS
If sinx+sin^2x=1, then find the value of...

If `sinx+sin^2x=1`, then find the value of `cos^(12)x +3cos^(10)x + 3 cos^8x + cos^6x-1 `

A

2

B

1

C

0

D

`-1`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC RATIOS AND IDENTITIES

    OBJECTIVE RD SHARMA|Exercise Chapter Test|60 Videos

  • TRIGONOMETRIC RATIOS AND IDENTITIES

    OBJECTIVE RD SHARMA|Exercise Section II - Assertion Reason Type|13 Videos

  • TRIGONOMETRIC EQUATIONS AND INEQUATIONS

    OBJECTIVE RD SHARMA|Exercise Chapter Test|60 Videos

Similar Questions

Explore conceptually related problems

If sin x+sin^(2)x=1, then find the value of cos^(12)x+3cos^(10)x+3cos^(8)x+cos^(6)x-1

If sin x + sin ^(2) x=1, then the value of cos ^(12) x+3 cos ^(10) x+3 cos ^(8) x + cos ^(6) x-2 is equal to

cos^(12)x+3cos^(10)x+3cos^(8)x+cos^(6)x-2

41. If sin x+sin^(2)x=1, then the value of expression cos^(12)x+3cos^(10)x+3cos^(8)x+cos^(6)x-1 is equal to

If 2cos x+sin x=1, then find the value of 7cos x+6sin x

If sinA+sin^(2)A=1 , then find the value of cos^(12)A+3cos^(10)A+3cos^(8)A+cos^(6)A+cos^(4)A+cos^(2)A .

If sin x+sin^(2)x+sin^(3)x=1 then find the value of cos^(6)x-4cos^(4)x+8cos^(2)x

If sin x + sin^(2)x = 1 , then what is the value of cos^(8)x + 2 cos^(6)x + cos^(4)x ?

If sin x+sin^(2)x=1 then write the value of cos^(8)x+2cos^(6)x+cos^(4)x

OBJECTIVE RD SHARMA-TRIGONOMETRIC RATIOS AND IDENTITIES-Exercise
  1. If cos(alpha+beta)sin(gamma+delta)=cos(alpha-beta)sin(gamma-delta) the...

    Text Solution

    |

  2. sin^(2)5^@+sin^(2)10^@+sin^(2)15^@ +.......+sin^(2)85^@ + sin^(2)90^@=

    Text Solution

    |

  3. If sinx+sin^2x=1, then find the value of cos^(12)x +3cos^(10)x + 3 cos...

    Text Solution

    |

  4. If ABCD is a cyclic quadrilateral, then the value of cosA-cosB+cosC-co...

    Text Solution

    |

  5. If ABCD, is a cycling quadrilateral such that tanA-5=0and 5cosB+3=0, t...

    Text Solution

    |

  6. If sin (picot theta)=cos (pi tantheta), then

    Text Solution

    |

  7. The value of sinx siny sin(x-y)+sinysinz sin(y-z) +sinz sinx sin(z-x)+...

    Text Solution

    |

  8. If ABCD is a convex quadrilateral such that 4 sec A+5 =0 then the quad...

    Text Solution

    |

  9. If (tanalpha+tanbeta)/(cot alpha+cot beta)+{cos(alpha-beta)+1}^(-1)=1,...

    Text Solution

    |

  10. cos(pi/15)cos((2pi)/15)cos((3pi)/15)cos((4pi)/15)cos((5pi)/15)cos((6pi...

    Text Solution

    |

  11. The value of cos12^(@)cos24^(@)cos36^(@)cos48^(@)cos72^(@)cos84^(@), i...

    Text Solution

    |

  12. The value of sin""(15pi)/(32)sin""(7pi)/(16)sin""(3pi)/(8), is

    Text Solution

    |

  13. sum(r=1)^(n-1)cos^(2)""(rpi)/(n) is equal to

    Text Solution

    |

  14. The value of cot theta-tantheta-2tan2theta-4tan4theta-8cot8theta, is

    Text Solution

    |

  15. If cos(x-y), cosx and cos(x+y) are in H.P., then cos x sec (y/2) equal...

    Text Solution

    |

  16. The value of tan20^(@)+2 tan50^(@)-tan70^(@), is

    Text Solution

    |

  17. If cosA+cosB+cosC=0, then cos3A+cos3B+cos3C is equal to

    Text Solution

    |

  18. Minimum value of cos2theta+costheta for all real value of theta is

    Text Solution

    |

  19. cos9^@-sin9^@=

    Text Solution

    |

  20. If y=(sin 3theta)/(sintheta), theta nen pi, then

    Text Solution

    |