Home
Class 14
MATHS
If sin(x+y) = cos(x-y), then the value o...

If sin(x+y) = cos(x-y), then the value of `cos^2 x` is:
यदि sin(x+y) = cos(x-y), तो `cos^2 x` का मान ज्ञात करें :

A

5

B

3

C

`1/2`

D

`1/4`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • SSC MATHS MAINS 2018 TRIGNOMETRY

    PINNACLE|Exercise Exercise|29 Videos

  • WORK AND TIME

    PINNACLE|Exercise EXERCISE|209 Videos

Similar Questions

Explore conceptually related problems

If sin (x+y)=cos (x-y), then the value of cos^2x is :

If sinx =2/3 , then find the value of cos3x . यदि sinx =2/3 ,तो cos3x का मान ज्ञात कीजिए।

If cos x + cos y =2 , then the value of sinx + sin y is

If sin x+sin y=a and cos x+cos y=b then thevalue of sin(x+y) is

If sin7x = cos11x, 0 यदि sin7x = cos11x, 0^@

If cos x + cos y =2, then value of sin x + sin y is

If sin x + sin y = a, cos x + cos y = b, then what is the value of cos (x-y) ?

If sin x+sin y+sin z=3. Find the value of cos x+cos y+cos z

If (sinx + sin y ) = a and (cos x + cos y ) = b what is the value of sin x sin y + cos x cos y ?

PINNACLE-TRIGONOMETRY-EXERCISE
  1. If cos theta=5/13, then the value of tan^2 theta+ sec^2 theta is equal...

    Text Solution

    |

  2. If sin theta+sin^2 theta=1, then the value of cos^2 theta+cos^4 theta ...

    Text Solution

    |

  3. If sin(x+y) = cos(x-y), then the value of cos^2 x is: यदि sin(x+y) =...

    Text Solution

    |

  4. If (cos^2 theta)/(cot^2 theta-cos^2 theta)=3, 0^@< theta<90^@, then th...

    Text Solution

    |

  5. If (sec theta+tan theta)/(sec theta-tan theta)= 2 51/79, then the valu...

    Text Solution

    |

  6. If sec theta+tan theta=3, then the value of sec theta is: यदि sec th...

    Text Solution

    |

  7. If alpha+beta=90^@, and alpha=2 beta, then the value of 3 cos^2 alpha-...

    Text Solution

    |

  8. If cosec39^(@)=x, then the value of (1)/(cosec^(2)51^(@))+sin^(2)39^...

    Text Solution

    |

  9. If 3sinx + 4cosx = 2, then the value of 3cosx - 4 sinx is equal to: ...

    Text Solution

    |

  10. If 4(cosec^2 57^@-tan^2 33^@)-cos 90^@ -ytan^2 66^@ tan^2 24^@=y/2, t...

    Text Solution

    |

  11. If 4-2 sin^2 theta-5cos theta=0, 0^@< theta<90^@, then the value of c...

    Text Solution

    |

  12. If sec 3x = cosec(3x -45^@), where 3x is an acute angle, then x is equ...

    Text Solution

    |

  13. The value of (sin^2 30^@+ cos^2 60^@- sec 35^@.sin^2 55^@)/(sec60^@+ c...

    Text Solution

    |

  14. If sin 3x =cos(3x-45^@),0^@ <3x<90^@, then x is equal to: यदि sin 3x...

    Text Solution

    |

  15. The value of (sin^2 30^@+ cos^2 60^@+ sec 45^@.sin^2 45^@)/(sec60^@+ c...

    Text Solution

    |

  16. The value of (sin^2 52^@+2+sin^2 38^@)/(4cos^2 43^@-5+4cos^2 47^@) is ...

    Text Solution

    |

  17. If 4 theta is an acute angle, and cot 4 theta=tan(theta-5^@), then wha...

    Text Solution

    |

  18. If 4(cosec^2 57-tan^2 33)-cos 90 +yxx tan^2 66xx tan^2 24=y/2, then t...

    Text Solution

    |

  19. If 4-2 sin^2 theta-5cos theta=0, 0^@< theta<90^@, then the value of c...

    Text Solution

    |

  20. Solve for theta: cos^2 theta-sin^2 theta=1/2,0<theta< 90^@ यदि co...

    Text Solution

    |