Home
Class 12
MATHS
The value of cos(2cos^(-1)0.8) is...

The value of `cos(2cos^(-1)0.8)` is

A

0.48

B

0.96

C

0.6

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • INVERSE TRIGONOMETRIC FUNCTIONS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|30 Videos

  • INVERSE TRIGONOMETRIC FUNCTIONS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Section II - Assertion Reason Type|11 Videos

  • INDEFINITE INTEGRALS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|30 Videos

  • LIMITS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|58 Videos

Similar Questions

Explore conceptually related problems

The value of cos(1/2cos^(-1)(1/8)) is (a) 3/4 (b) -3/4 (c) 1/(16) (d) 1/4

The value of cos (1/2 cos^(-1) . 1/8) is equal to

Write the value of cos^2(1/2cos^(-1)3/5)

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

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

Write the value of cos^2(1/2cos^(-1)(3/5))

The value of cos[1/2 cos^(-1){cos(sin^(-1)((sqrt63)/(8)))}] is

If sinA+sin^2A=1, then the value of cos^2A+cos^4A is

The value of cos[1/2cos^(-1)(cos(-(14pi)/5))]\ is/are a. cos(-(7pi)/5) b. sin(pi/(10)) c. cos((2pi)/5)\ d. -cos((3pi)/5)

If a=int_(0)^(1)(cos(sinx))/(secx)dx, then the value of a^(2)+cos^(2)(sin1) is equal to

OBJECTIVE RD SHARMA ENGLISH-INVERSE TRIGONOMETRIC FUNCTIONS -Exercise
  1. If xy +yz+zx=1 then tan^(-1)x+tan^(-1)y+tan^(-1)z=

    Text Solution

    |

  2. Let x(1) " and " x(2) ( x(1) gt x(2)) be roots of the equation sin^(-...

    Text Solution

    |

  3. The value of cos(2cos^(-1)0.8) is

    Text Solution

    |

  4. If 0 le x le 1 then cos^(-1)(2x^(2)-1) equals

    Text Solution

    |

  5. The value of tan[cos^(-1)(4/5)+tan^(-1)(2/3)] is 6/(17) (b) 7/(16) (...

    Text Solution

    |

  6. Evaluate: {(2tan^(-1)1)/5-pi/4} (ii) tan{1/2cos^(-1)(sqrt(5))/3}

    Text Solution

    |

  7. about to only mathematics

    Text Solution

    |

  8. The value of cot^(-1){(sqrt(1-sinx)+sqrt(1+sinx))/(sqrt(1-sinx) -sqr...

    Text Solution

    |

  9. The value of sin[cot^(-1){cos(tan^(-1) x)}] is

    Text Solution

    |

  10. If x >1 , then 2\ tan^(-1)x+sin^(-1)((2x)/(1+x^2)) is equal to (a) 4ta...

    Text Solution

    |

  11. If A=tan^(-1)((x sqrt(3))/(2k-x)) and B= tan^(-1)((2x-k)/(k sqrt(3))),...

    Text Solution

    |

  12. Solve sin^(-1) x + sin^(-1) (1 - x) = cos^(-1) x

    Text Solution

    |

  13. If -1 le x le 0 then cos^(-1)(2x^(2)-1) equals

    Text Solution

    |

  14. If -1 le x le -1/2, then sin^(-1)(3x-4x^3) equals

    Text Solution

    |

  15. sin^(-1)(sin10) is a+bpi then |a+b| is

    Text Solution

    |

  16. The value of tan^(-1)1+tan^(-1)2+tan^(-1)3 is :

    Text Solution

    |

  17. The value of sin^(-1)(cos((33pi)/5)) is (a) (3pi)/5 (b) -pi/(10) (c) p...

    Text Solution

    |

  18. Find the smallest and the largest values of tan^(-1) ((1 - x)/(1 + x))...

    Text Solution

    |

  19. The least and the greatest values of (sin^(-1)x)^3+(cos^(-1)x)^3 are (...

    Text Solution

    |

  20. If a le 1/32 then the number of solution of (sin^(-1) x)^(3) +(cos^(...

    Text Solution

    |