Home
Class 12
MATHS
cos^2 4 5^(@)-sin^2 1 5^(@)=...

`cos^2 4 5^(@)-sin^2 1 5^(@)=`

A

`(sqrt(3))/(4)`

B

`(sqrt(3))/(2)`

C

`(4)/(sqrt(3))`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC IDENTITIES

    ARIHANT PUBLICATION JHARKHAND|Exercise EXAM BOOSTER FOR CRACKING EXAM|35 Videos

  • TRIGNOMETRIC RATIOS

    ARIHANT PUBLICATION JHARKHAND|Exercise Exam Booster for Cracking Exam|25 Videos

  • VOLUME AND SURFACE AREA

    ARIHANT PUBLICATION JHARKHAND|Exercise Exam Booster For Cracking Exam |42 Videos

Similar Questions

Explore conceptually related problems

The value of (sin^2 52^@+2+sin^2 38^@)/(4cos^2 43^@-5+4cos^2 47^@) is : (sin^2 52^@+2+sin^2 38^@)/(4cos^2 43^@-5+4cos^2 47^@) का मान ज्ञात करें:

(sin2^(@)+sin4^(@)+sin6^(@)+sin8^(@))/(cos1^(@)*cos2^(@)*cos5^(@))=

The value of (sin 1^(@) +sin 3^(@) + sin 5^(@) +sin 7^(@))/(cos 1^(@)*cos 2^(@)sin 4^(@)) is __________

The expression sqrt(sin^(4)(37.5)^(@)+4cos^(2)(37.5)^(@)) +sqrt(cos^(4)(37.5)^(@)+4sin^(2)(37.5)^(@)) simplifies to

The expression sqrt(sin^(4)(37.5)^(@)+4cos^(2)(37.5)^(@))+sqrt(cos^(4)(37.5)^(@)+4sin^(2)(37.5)^(@)) simplifies to

sin5A=5cos^(4)A sin A-10cos^(2)A sin^(3)A+sin^(5)A

int ((4-5sin x) / (cos ^ (2) x) + (1) / (sin ^ (2) x cos ^ (2) x)) dx

If f(x)=|{:(5+sin^2x,cos^2x,4sin2x),(sin^2x,5+cos^2x,4sin2x),(sin^2x,cos^2x,5+4sin2x):}| then evaluate

ARIHANT PUBLICATION JHARKHAND-TRIGONOMETRIC IDENTITIES-EXAM BOOSTER FOR CRACKING EXAM
  1. Prove than tan 56^(@) =("cos " 11^(@) + "sin " 11^(@))/("cos " 11^(...

    Text Solution

    |

  2. The value of (cos 15^(@) - sin 15^(@))/(cos 15^(@) + sin 15^(@) is

    Text Solution

    |

  3. If tan theta = (x sin phi)/(1-x cos phi) and tan phi =(y sin theta)/(...

    Text Solution

    |

  4. If sin(theta + alpha)=cos(theta + alpha) then the value of tan theta i...

    Text Solution

    |

  5. The value of cos^(2) (theta - phi)/(2) - sin^(2) (theta + phi)/(2) is

    Text Solution

    |

  6. cos^2 4 5^(@)-sin^2 1 5^(@)=

    Text Solution

    |

  7. If 0 le theta le 90^(@), then the value of (5 cos theta - 4)/(3 - 5 si...

    Text Solution

    |

  8. What is the value of cos10^(@)+cos110^(@)+cos130^(@)?

    Text Solution

    |

  9. The value of cos 52^(@) + cos 68^(@) + cos 172^(@) is

    Text Solution

    |

  10. The value of (sin 38^(@) - cos 68^(@))/( cos 68^(@) + sin 38^(@) is

    Text Solution

    |

  11. If cos x = k cos (x - 2y), then the value of tan (x -y).tan y is

    Text Solution

    |

  12. The value of 2 cos x - cos 3x - cos 5x is

    Text Solution

    |

  13. A horse is tied to a post by a rope. If the horse moves along a circul...

    Text Solution

    |

  14. The largest hand of a clock is 42 cm long, then the distance covered b...

    Text Solution

    |

  15. The interior angle of a convex polygon are in AP. The smallest angle i...

    Text Solution

    |

  16. The value for 2(sin^6theta+cos^6theta)-3(sin^4theta+cos^4theta)+1 is

    Text Solution

    |

  17. The value of 2 sec^(2) theta - sec^(4) theta - 2 cosec^(2)theta + cos...

    Text Solution

    |

  18. if sin x + sin^2 x = 1, then the value of cos^2 x + cos^4x is

    Text Solution

    |

  19. If cosec theta - sin theta = a^3, sec theta - cos theta =b^3, then pro...

    Text Solution

    |

  20. If sin theta + cos theta = m and sec theta + "cosec" theta = n, prov...

    Text Solution

    |